I made a similar complaint about Natsumi Moe and it seemed to work out for her (even if she's playing into the gfe shit which is probably feeding her NTR fetish). That complaint being abandoning their original channel for no apparent reason, starting a new channel as if it's a new vtuber company, and then abandoning that as soon as she got accepted by HL.
As much as people meme on the fishman, he's shown that he can spot a diamond in the rough multiple times now. Pippa, Lumi, Shiina, hell, pretty much all of the PC girls were directionless, and now all of them are slowly gaining in popularity.
Yuri is the only one that just didn't want to improve, but her new/old channel is doing well, so I can't give her too much grief.