The main source of that was Ember saying Sakana gets half in one of her streams.
Is it a raw deal, though? The talents are getting much better reach (and thus, more memberships and donos) than they would as indies. They might be making similar money as to what they would without the extras they get at PC. But with PC, they get management support. They get presence at cons and meet-and-greet support. There's merch sales, sponsorship streams, covers paid for, online advertising paid for, even a gym membership paid for. I can see the value in what gets given back.