IMO theres pretty much a 0% chance that this isn't the result of Doc getting MeToo'd. For one, Twitch is desperately trying to prove that their IP isn't a gathering hub for denizens of misogyny/rape culture. If Doc wasn't MeToo'd they'd say it immediately. If, for some reason (like being ran by a bunch of pepegas), Twitch didn't take that route, then Doc himself most certainly would've made a statement like this himself.

I'm gonna go out on a limb and say that Doc's public confession was a very calculated move, involving both him and Twitch staff, to get ahead of potentially more devasting details regarding his infedility and perhaps some shit is resurfacing that potentially makes Twitch look very bad if they don't immediately eradicate his presence from their platform. Literally the only thing that makes sense at this point.