I will note, again, that the Empty Faces don't seem to be relying primarily on mental manipulations in the jailbreak.
Their approach seems to be "hey, prisoner trapped in MCAT's jail, how about I disable your jailers and hand you a gun, feel like going to shoot some MCAT with us?" At which point the prisoners say "yes, yes I would very much enjoy doing that" and now you have a jailbreak.
The only people we saw mind-controlled are the (surviving) guards, and there probably aren't that many of those, and the main way they're contributing seems to have been by providing information (which is probably mostly done) and by providing a cover story to keep the rest of MCAT noticing what was happening (which is over).