>>10927286NijiEN audience is completely different from the regular Niji audience.
It's almost all previous (or current) HoloEN viewers.
Nijisanji purposedely targetted those people with the style they went for and 3 full waves of strictly only girls, and debuting males as a separate thing.
The obvious benefit was directly starting with an existing market instead of growing your own, which is more risky.
But now, good luck shifting back into actual Nijisanji, most NijiEN fans won't admit it but they still are heavily influenced by Hololive standards and project those on the Niji girls. Even the girls will probably feel pressured not to go out of their way to interact with the guys because that's what is expected from an audience that only ever knew Hololive.
The sad and likely result will be the male wave being isolated and only getting a rare collab every now and then, barely interacting with the girls on twitter, basically holostar treatement. This is the result of waiting 4 waves before introducing males, and having strictly non-mix gens, it's probably already too late.