The MCAS system design is just so obviously flawed I can't understand how nobody stuck their feet in sand and started saying no, under any circumstances, this is not happening.
I guess you could apply the same question to the people at the FAA, but even after reading the article I still don't understand how the FAA is involved in oversight at all. It kind of seems like they are just checking boxes, but I'll admit that as an outsider the whole FAA/regulatory system is not really something I think I can wrap my head around.