The report said that aviation safety experts it interviewed agreed that the FAA's decision to certify the Max as an update to previous generation 737s rather than a new type of aircraft didn't affect the Max's safety
"Each said a new TC (aircraft type certificate) would not have produced more rigorous scrutiny of the 737 Max 8 and would not have produced a safer airplane," the report said.
Is not it a new requirement for better not confusing cockpit warnings that would have been required on new Aircraft Type Certificates?
Is it not true that changes in compliance standards (the grandfathering was used for) are higher standards more safety intended + safer aircraft or were they introduced for fun?