I think Disney cares quite a bit about the average consumer. If they were as Draconian as you suggest, they'd have gone to paid FPs in the first place and never made them free at all. Or at any point until now.
What they aren't likely to do is us a COVID rest to make something that was free into a charge.
The opinions people around here hold about Disney are truly mind-boggling. While Disney is expensive, they've never been guilty of the blantant money grabs people accuse them of. The worst most people say about them is "the parks used to be better because of X" and yet anything anyone can say that makes them look money-grubbing gets upvoted all the time.