“So, how many planes have to crash before it is safe to say there is a problem here?”
I don’t really like your tone, but I’m a civil guy, so I’ll respond.
How many poorly trained pilots flying on poorly run airlines need to crash perfectly good planes before you say there is a problem here?
The Ethiopian crash is, in some ways, worse than the Lion Air. After that crash last October, the world was flooded with information on the MCAS system. It was a headline for weeks and Boeing even issued a statement to all pilots about what they should do if there was a failure.
You would think that with hundreds of millions of non-pilots knowing a lot about the system from reading about it every day, a pilot paid to fly the 737-800 might have had a clue, wouldn’t you?
That’s why I think the cause of the Ethiopian is something other than pilots being clueless about MCAS.
Bjorn’s Corner: The Ethiopian Airline’s Flight 302 crash
By Bjorn Fehrm
March 15, 2019, ©. Leeham News
https://leehamnews.com/2019/03/15/bjorns-corner-the-ethiopian-airlines-flight-302-crash/