Is there a reason why the alternative idea of closed autocatalytic sets from Stuart Kauffman doesn't get nearly as much attention or discussion as the RNA origin hypothesis?

Ever since I first learned about it, it seems to me a much more likely origin of life hypothesis, as it doesn't require something to catalyze itself, which causes inevitable problems with mutation causing loss of catalytic efficiency.

Also, it is not incompatible with RNA being one of the early building blocks. It just doesn't require RNA to be where everything started.