What I always find weird but understandable is that Boeing's stock price never really suffers from all these kinds of things. Yeah I know it went to $400 before, and recently shot up to $250, but that was more like a short time thing. Its stock price hasn't changed much comparing to 2020, when COVID hits every stock.
I say this is also understandable because 1) The government is probably going to bail BA out for the next 10 mess-ups; and 2) The stock market, since 2010, and perhaps further before, has been a money game, mostly dictated by monetary policies instead of corporate performance.