Reducing this to "people don't like change" is a ridiculous over simplification designed to insult people into staying quiet.
I loved Carsland and the whole reworking of DCA. That was a pretty big change and I loved it.
From what I have seen of the Festival of Fantasy parade, I think I'll love it. That was a change.
I'm one of the few actually happy they are changing Maelstrom into a Frozen ride. That's a change.
Just because I'm not a fan of FP+ does not mean I don't like change.
I absolutely agree it is not about not liking change in general. Like you we love Carsland and the whole reworking of DCA. We love the Festival of Fantasy parade, especially that incredible dragon. We were at WDW for Malestrom's last weekend of operation and had a FP+ for our last ride (which I actually did like as the lines were 2 to 3 hours long or more since it was closing). I pretty much had to clap a hand over DD's mouth because she wanted to broadcast to the world--- in front of all the devastated Malestrom die hard fans who were waiting for one last ride, taking a thousand pictures, and occasionally crying- how excited she was that boring old Malestrom was getting shut down and Frozen was coming.


We actually like the magicbands themselves too.
2 FP+ trips- for the most part we despise FP+. We hate the 60 day in advance ride and attraction planning. We hate the guessing game of not only where we will be at any given time in 2 months, but also what the lines will actually be like at that time of day. I much preferred the day of FP- where you could get FP if and when you needed them, and skip FP if you did not need it. I hate being locked in now. We hate the tiers. Not being able to FP+ both TSM and RNRC causes a great deal of stress-- RNRC is one of my favorite rides and I did not get to ride it at all last trip because we FP+ TSM for DD and even the single rider line for RNRC was too long to justify DH and I taking turns (DD won't ride). Not being able to FP+ both Test Track and Soarin at EPCOT is also a source of stress. The fact that Nemo, Figment, Small World, and POTC which we usually walk on had 30 minute lines due to FP+ was not good. We did not like that we felt like FP+ took away our freedom. We did not like that there were FP+ we booked that we did not need as the wait time for that ride was low at our FP+ time and that we had no real ability to switch it to something we did need at that point. Plus, rides we typically historically did not need FP+ for or that did not even have FP, now we had longer waits for and wouldn't have minded a FP. We do like having the one FP+ to the ride that we usually did the morning FP run to, particularly Soarin and TSM. It was nice not having to run the race to get a FP for those, but that was about it.
Oh and I should add, that I particularly hated FP+ when I tried to move a time earlier on the app to get to my 4th faster, and the app showed me it was giving me an earlier available time, and when I hit confirm it assigned me a FP+ 6 hours after my original FP+ instead of the time it showed me (which was supposed to be only 30 minutes away). I also hated it when it would not change back to my original time or any other earlier time on the app. I continued to hate it when the kiosk CM told me it was a glitch or the time pulled up for more than one person and someone hit confirm before I did, but that there was nothing they could do to fix it.