Usually not a fan of buyouts, but this doesn't sound so bad. They've been working together for a while and it sounds like idol would've gone under otherwise. The fact they're allowed to take their models and channels with them if they don't want to stay is admirable as well.
About as good as it can be all things considered. BraveGroup must believe that they can offer as good or better deal to the talents if they can walk with their IP. The artists that are behind on getting paid will be cleared up and the fans waiting on merch have something to look forward to.
Also, it's not like the Idol talents aren't talking to the V4 talents behind the scenes. They know what's up. Even if it's a one time offer, letting the talents walk with their IP is a big PR boost for BraveGroup