Nah, I think thats cynicism speak. For some of them, they're leaving the big shops because their concerns got buried in a rush to monetize. And because the time for their theoretics may be moving, and they're bored and don't need the hassle. Somebody like Hinton is my age +5, he's late stage career. Nobody gives him shit, he does what he wants.
Kicking the ladder out to stop young pups isn't in his model. Why would he do that? His legacy is secure.
I'm not convinced Scott Aarenson is doing his job right atm. He needs to be more "lets wait and see" and less "we've got a fix for this in planning. His "we have a fix for typing the words as AI sourced" went very quiet.