Nijisanji specifically operates in a way where they can easily lose half of their members and not even bother about it, because there is so much left that average viewer is just going to stick with it and keep watching company mandated vtubers. Even big names leaving isn't going to do shit to their bottom line, especially not girls. Remember that 2/3 of their income comes from women around the age of 20. And even if Vox leaves, they are still going to have plenty to offer, I bet Hex would pop open an expensive wine to celebrate it. Until their JP branch implodes they genuinely don't give a fuck and can easily tell everyone to suck a fat one or leave. This is why you should be cheering for your oshi to graduate so she doesn't have to work in this toxic hellhole