Cute is defined as "attractive or pretty especially in a youthful or delicate way". This automatically disqualifies anyone you know is getting fucked on the regular. Thus openly taken chuubas lose both unicorns and "non parasocial" fans who watched them because they were cute.
In conclusion vtubers who rely on cuteness as a crutch cannot survive being having their relationships exposed, while more talented vtubers can still rely on being funny, entertaining, etc and partially recover.
Thank you for attending my SPED talk