NTSB can't insist - my understanding is their role is the same as that of our own AAIB in that they investigate, make findings and can make safety recommendations.
Only the FAA can regulate but, if the point you're trying to make is that the act needs cleaning up, then if the industry gets in there first with a proper "code of conduct" including equipment, training and flight decision criteria - which overrides commercial interest, then they're ahead of the game. However, the words "commercial interest" are the killer
