"Yes, but they are making it more difficult to do things that were once easier to do" - How do you know it'll be more difficult? I thought getting a fastpass was a pain in the rear personally, especially at TSM in the morning
So if you were already paying to stay at a Deluxe Resort than this may be easier for you. For everyone else it will be more difficult because it will either be more costly or they would simply be out earlier in the day.
"They are making a Disney vacation far less convenient and that's what people are opposing" - How do you know it'll be less convenient. Maybe it'll be easier to do things, or we won't even notice a difference
For a small group of young adults, this could be very helpful. But the larger the group gets, the more complicate it will be to schedule everything. People will either have to miss Fastpass windows (already happening) or reservations (also, already happening and they're being charged for it) or waste time being early for these scheduled things.
Look, I can handle showing up 20 minutes early for my Be Our Guest and Ohana Reservations only to have to wait 30 minutes past my reservation time at both locations before being seated. That only wastes 50 minutes of my day. But what if 180 days out I think I'm going to be in Fantasyland at 11:30 but oh no, I'm actually going to be in Epcot. My family and I are out of luck. Sure, we can change our fastpasses last minute but our Peter Pan, Enchanted Tales with Belle, Little Mermaid and Winnie the Pooh Fastpasses don't translate to comparable attractions at Epcot. In the Magic Kingdom those Fastpasses saved us 3 hours, but now we can only get Living with the Land, Imagination, and The Seas with Nemo and Friends at Epcot. Instead of saving us 3 hours we're only saving 10 minutes.
Late returns for Fastpasses worked well for families. It was hard to make Mom and Dad and their 2.4 kids watches all chime simultaneously. Now Disney is trying to make 45,000 watches all adhere to a schedule. That's simply not possible. I have no confidence that the end product will be executed well, because very little up to this point has been executed well.
"what we do recognize is that we aren't going to have the same access to these rides that was previously available to us" - the standby line will be there - go early, you won't need a FP, FP+, FP+butterbeer
The standby line will still be there but previous usage of Fastpass allowed me to skip the standby lines for 3-6 attractions at MK on any given day. Not every family can get to the parks at rope drop and having to do so adds to that "inconvenience". Touringplans has estimated longer standby lines (I believe by 7 minutes, but I would speculate that's far from definitive), but the point is that for my admission dollar I will not be able to have the same experience I had before. I won't be able to experience as many high demand attractions as someone that has greater access to the system, or is willing/able to plan their entire day 180 days in advance.