I really think they should have put more thought into the timing of this decision; a lot of users are going to be upset and will suddenly start to realize that a single company has a monopoly on their online social life (this may seem like an exaggeration, but it feels quite true to me colloquially, especially if you're a younger US male and/or play video games).
Regardless of how right or wrong this moderation choice may be, I hope that this accelerates the push for decentralization and encryption; the few companies that virtually all online humans use to communicate have far too much power over us, and we should be more willing to recognize that extreme centralization of power is dangerous.
(One final note: (EDIT: subreddit is now public again) now that this caused the subreddit to be set to private which seems to have instantly caused $GME to start tanking in AH, they are going to be in for users that are much more upset than they are used to if the narrative decides that this ban caused the crash, if it does in fact last until tomorrow)