I hadn't realised that in the cases of the "Comet, B737, DC-10, ATR 72, Airbus A330", that each aircraft catestrophically failed a critical certification test just like the S-92, and that the OEM agreed with the certifying agency that they could ignore the failure mode because it probably wouln't happen so the aircraft were allowed to enter service anyway.
Or perhaps your hindsight is rose tinted.