You've answered your own question... more people are learning to program, from fewer and more professionally run sources, which preach a gospel that prizes engagement, conversions and ease-of-use, over empowerment, functionality, or choice. Plus, with this larger and more mainstream community, where 'coders' are pulled in off the street with little technical knowledge (let alone passion) who never grokked complex apps anyway, produce what they know. The end result is a sea of gimped, appliance-like 'apps' that do little more than funnel users towards business objectives.

And when the business died, their software still ran. Hard-won expertise kept it running. No stupid CEO or developer could stop you, and neither could they pull the rug out from under your feet with a sunset or some other shitty move. You bought your software and that, mercifully, could be the end of your relationship with that publisher.

This doesn't really address my point. You still haven't explained anything regarding choice, or any of your other points.