I think that is a fair assessment. For me, Its the fact that the myriad of things that can go wrong simply did not exist before, whether it was legacy or even pre-legacy days. Disney has created a system with so many technological parts all moving simultaneously that one problem can create a cascading effect that can result in the entire system shutting down causing resort wide problems. It will have to constantly be upgraded which can only result in more money being spent on MM+ and less money being spent on P&R. These are all problems that we never had to worry about in the past, and now what, we can book a ride 60 days out? We can make an ADR on our phone? Is it really better now?
Adding technology to something does not necessarily make it better. Just because the technology has cool features, it does not necessarily make it better. Just because the technology exists, that does not mean it MUST be used. Can it makes things easier? Sure, but does 'easier' truly make it better if it can come at the cost of a major malfunction happening at any given moment? Disney has spent billions on this and advertised how much more enjoyable your vacation will be because of it. Even if you have a flawless experience, which I have had on certain days, does it TRULY make your trip that much better than before? Im talking about a genuinely upgraded experience that left you in awe of how much more wonderful everything is because of it? You know, that feeling you get when you first rode POTC, or ToT, or watched Celebrate the Magic while holding your kid and seeing the look of complete amazement on their face when the projection hits the castle. MM+ doesnt do any of that, but they advertise it like it will. They tell you how amazing it is. And while its not bad, they could have created so many wonderful things with the money spent on it, which would have also solved the problems they claim MM+ alleviates.
And for the love of God, please nobody respond with a comment about how Im wishing legacy would come back. I dont care if we never see legacy again, we wont. But I d@mn sure dont want to have to wait in line for 20 minutes at GR because my FP+ got erased. I dont want to visit the front desk 3 times because the magic band wont open the door..again. Dont be too proud of this technological terror Disney has constructed. The ability to book FP+ on your phone is insignificant next to the power of real Disney magic.