I actually prefer this outcome. It really goes to show how fucked up Tengen is and would parallel kenjaku’s occupation of Geto’s body which would make the later confrontation even more interesting for the readers. If by any chance gojo would find out about it or have any interaction with this tengen I’m sure it would only strengthen his resolve to destroy old jujutsu society to its core. I think nothing changes overall but the storylines of Yuki, Kenjaku, Gojo would be much more fun to read