the thing about regulation is you don't get good at it. You get good at a specific area of regulation but that rarely transfers to some entirely different set of regulations from different authorities in different places.
Saying "they're getting good at regulation" is like saying a paleontologist is "getting good at science". Sure some concepts cross, but actual understanding and competence needed to do the new job at hand don't.
Of the two, I'd probably rather fight with the FDA versus the NTSB, though.