Most people on this forum won't understand these "overwelming" comments about Disney being stressful or complicated because we get it. We know our Disney stuff, but I do think the research Disney gathered did state this.
There are many factors that need to be taken into account that are not controlled by Disney like:
-People are far more impatient than they were 10, 20, 30, and even 40 years ago. (Children and Adults alike)
-WDW is the number one tourist destination in the world with attendance rising by millions over the past few decades.
-People are always looking for shortcuts.
-People bring a lot more with them into the park than ever before, especially with children. (i.e. the loaded down strollers)
-Technology changes and with it businesses much change with the times or be left in the dust.
There are also factors that Disney can control like:
-Fastpass has increased wait times on certain attractions and will continue to affect more attractions due to the additional line that now must be merged.
-Strict rules on when you can get a Fastpass, who can get a Fastpass, how many you can get, where to get it, how many are distributed, return windows, which ones really need it and which ones don't in addition to other rules like height requirements, supervise children policies, rider switches, stroller parking, EVC/wheelchair transfers, and GAC cards.
-System abuse and those trying to cheat the system with GAC card abuse and finding ways to cheat the Fastpass system rules.
When an average guest comes to the park with kids, they are overwhelmed. Here they paid tons of money to have a perfect experience that will become a nightmare if their expectations are too high. The kids won't last the day, the heat, the crowds, losing the stroller, not arriving early enough for the parade, everything is so expensive, lines, and more lines, and then they want a Fastpass, but they can only get one every 2 hours. Grabbing one for one one attraction you think you need it for and come to find out you don't, but then you can't get one for another attraction. Then you don't know if the return times will work or if they will be gone all together. Throw in a few additional kinks like a ride going down or an afternoon thunderstorm closing the ride you were waiting for. It all turns into "not your typical day at the amusement park".
Fastpass+ will replace Fastpass as we know it. It will allow for pre-planning, but still allow for day of spontaneity. It will allow you to pick times like might work better for you. It will limit the amount of Fastpasses you get in a day, but if you miss your time, you still have a "credit" to get a new one. You can make changes day of if something arises. Families won't have to split up or arrive at rope drop just to get a coveted Fastpass for Toy Story Midway Mania. Fastpass+ will ensure guest who have specific attractions they want to go on get done on their visit. Fastpass+ will hopefully limit abuse as the system will hopefully account for dinning reservation times and attraction downtimes. Area leaders will have more capability with fixing Fastpass issues like modifying and changing existing plans. Fastpass+ will be new to some locations which may affect those wait times, but it won't increase the Fastpasses distributed at current locations lessening the impact. Fastpass+ also takes the stress out of keeping up with all those paper tickets. Guests can loose them, throw them away, or misplace them. You won't have to each attraction to find out the wait time or the return times just to get a paper ticket. It will all be published on your smart phone or at kiosks for you. It will be a completely new system to get used to and so many people don't quite understand how it will work thus getting all worked up over the changes, but overall, Fastpass+ should be a better system than what is currently in place. It won't be perfect. There will be a learning curve and for those who just got used to the current system, they will be stressed learning the new one, but once everyone gets it, it will become the norm.
In the future, I may plan a vacation with my family to the parks. Just as I book my resort and make a dinning reservation or two, I will also be able to pick a select few attractions and other experiences that I want to be sure to get in while I'm visiting such as Tower of Terror, Soarin', Pirates of the Caribbean, and IllumiNations. I may not know what the weather or crowds will be like, but I will know that I will be visiting on certain dates, eating at some of my favorite restaurants, staying at my favorite resort, and visiting my favorite attractions. Once I arrive, maybe I come to find that my family might not all want to ride Tower of Terror, so I can change my Fastpass+ reservation for Toy Story Midway Mania. I won't have full reign over my time choices, but I will be able to find a general time frame like morning, afternoon, or evening that will work best for me. Since I have dinning reservations at 50s Prime Time at 6:00, the system won't allow me to pick a time from 6:00 to 7:00 because it would cause a conflict on interest. Let's say in the park at Magic Kingdom, I find out that Pirates is down during my Fastpass+ time, I get a notification on my phone while I'm eating. I am then offered with a later time or perhaps an opening slot at Splash Mountain or Jungle Cruise. Rather than walk to Pirates and realize this, I can now adjust my plans to have a better experience in the park. I wanted to do Jungle Cruise right afterwards anyways, so that will work to our advantage. Let's say my kid has a little meltdown and needs to go back to the hotel for a nap, my battery for my phone is dead too and needs a recharge. Instead, I visit an in park kiosk or talk to a cast member that can change my plans. Let's move Jungle Cruise back a few hours so we can go back to the hotel. My Fastpass+ viewing area for IllumiNations will still be there later that night as well so I know I won't have to arrive super early for a great spot allowing me to spend more time at Magic Kingdom too. Who's to say that while I'm at the park, more Fastpass+ times will become available making a wait for Haunted Mansion a little shorter since I didn't know if it would be a busy day or not. All of that is on my card, since maybe I didn't want to wear a MyMagic+ wristband.
I keep an eye on the MyDisneyExperience app and a new feature allows you to input in information on your traveling party so you can make decisions for your group too. Right now, you need to collect up all your tickets to visit a machine to get your Fastpasses. Don't forget they have to be in the park too. Now, while the kids are getting a later start at the hotel, you can pull up the app an make a few Fastpass+ reservations without even worrying about getting to the park early or having everyone's tickets with you.