Imopaseo
Your favourable experience of the Special Condition process may possibly have been as a result of acting on behalf of American Industry.
But the really contentious SCs are not data driven. They are wrapped up in difficult probabilistic argument and in the final analysis your guess is as good as mine. So the final decision is not conducive to rigorous technical vetting.
And that is where the clout of the Industry lobby comes to the fore.
Very few SCs are changed once they have left the closed doors of the original writers.
I believe the drafting of Regulations / Requirements is a much more open, democratic and transparent process. SCs, being product specific are far more susceptible to commercial pressures.