Very lengthy and moderately detailed article just popped up on my newsfeed:
https://www.theverge.com/2019/5/2/18...error-mcas-faa
Nothing surprising to anyone on this forum, but a good outline, and quite astonishing to read the whole story from beginning to end.
Typical paragraph, relevant to this thread:
So had anyone checked, they might have flagged MCAS for one of several reasons, including its lack of redundancy, its unacceptably high risk of failure, or its significant increase in power to the point that it was no longer just a “hazardous failure” kind of system.