Earlier quoted context omitted.
The Nerdwriter has a good video (short, just 6 minutes) about it: https://www.youtube.com/watch?v=w876zZZIb10 The gist of it is, they're hoping to grow so big that movie theaters will have no choice but to negotiate with them, to share part of the revenues they bring theaters from people who normally don't come watch movies on a whim anymore.
And the movie theatres just created thier own subscription service. Why should they pay a third party?
I'm considering switching from MoviePass to AMC A-Stubs or whatever it's called, but will lose out on the opportunity to walk to my local theater for a free flick.