I don't think Cung Le is moving from San Shou to MMA because he's run out of people to fight. I think it's more for the long green. Exactly how much $$ can you make fighting san shou? And how much in MMA?

I agree that martial arts is at a crossroads of sorts, but not just CMA. CMA might not be the best in the MMA world, but it still offers plenty that MMA doesn't offer. Money isn't one of them, though.