Disney attempted to use FP+ as a method to avoid building out their Florida parks and attractions at the level needed to handle the growth that they were after.
You can’t keep adding resort rooms and Vacation Club rooms and marketing to get more and more people into your parks and not increase attraction capacity without increasing waits.
This was a choice they made to maximize profits over guest satisfaction and now everyone is fighting with each other over what is fair for local, national, and international guests instead of looking at what the real problem is and who created it.
They’re about 20 years behind where they should be to handle the crowds they’re happily welcoming in with skyrocketing prices for everything they can think of to charge for and they have the audacity to suggest that certain price increases (like variable admission prices) are “needed” to manage crowds when all it amounts to is paying the most for the days you’ll be most miserable in the parks with the least opportunity to do things.
The reality of scheduling a vacation and the way these prices can fluctuate during a week means that most people do not have the flexibility to only visit on the “cheap” days and Disney fully understands this.
How stupid do you have to be to believe programs like this are for any purpose other than wringing more money out of their guests?
Recent work on additions is starting to address capacity but isn’t anywhere near enough, especially with the average length of attractions getting shorter and shorter.
Despite all of this, people can’t seem to hand Disney their money fast enough or promote programs (like this post) that would allow Disney to charge even more for less and less.