Which is why I am so sceptical about the massive number of posts here that seek to blame a single cause - MCAS.
There is usually a chain of factors involved in a accident and it only takes one of the links to be broken for the accident to be avoided. The Lion Air aircraft would have crashed on a previous flight had it not been for another pilot on the jump seat who correctly diagnosed what was going wrong. Had the defect been rectified after that flight it wouldn't have occurred either.
Post #103 is an excellent example of an accident chain and shows the importance of a safety culture and crew discipline.