You're approaching this with the nuance of a child. Yes, nuke regulation is burdensome, and yes it is necessary because nuke can have quite severe failures when failures occur. The solution is not to dogmatically suppose that one of those two basic facts is false. It's to engineer around the problem by making many exact copies of the same design, reducing the amount of regulation that needs to be applied on a per unit basis. That's what small modular reactors are. Certify once, build many.