This is something I've actually noticed. I travel in some really lefty spaces on the internet. I treat it like Jane Goodall observing the chimps, except with SJWs.This was inevitable for NijiEn since they started pandering to twitterfags. You build a mostly female, extremist leftist, and 'progressive' kind of fanbase, you lose all avenues to be based. At this point, I kind of understand why people are starting to think that HoloEN has more freedom than NijiEN these days.
I've overwhelmingly seen them shift hard to being Niji fans over Holo and even vShoujo to a staggering degree. That and obvious ally-bait Indie vTubers.
One of the Idol Corp's Hebrew wave vtuber, Lily Sin, will be graduating at 24th February. Not really following them and the agency so far, just found it posted on my twitter timeline recently.
I suppose it will be easier to reboot them if there's just fewer left.
Meme edit: