It seems as if the bottom line is that the safety margin of the legacy 737 was simply eroded to an unacceptable degree with the new engines and became “cigarette paper” thin with the MAX in the search for ever better fuel economy. Boeing recognized this during the development phase and tried to code their way out of it with MCAS thereby creating a solution which may well be more dangerous than the original risk.
Is that reasonable summary ?
I wonder what parameters have been changed with the new software patch, and I’m still curious about the purpose of the 5 second delay which could easily trick pilots into believing there was no problem with the system.