I think PBC is probably the most exclusive of all promotions. I believe a lot of talent is trapped there.
It has run out of the most important thing in boxing money and other people with deep pockets have entered the scene. It is as simple as that
It was a pretty strange little eco-system they ran over there but they usually knew how to match their fighters well and do look after them for the most part. Signing with PBC from a fighter's perspective was actually a very good decision a couple years ago when PBC would give you crazy good purses so you don't have to fight often enough to end up with CTE. But the money's dried up and they're pretty clearly on their last legs now. No other platform gets across that big fight feeling like PBC still manages to do though imo.