Well, that's not exactly the whole story, is it? What happened on March 8?
https://www.google.com/search?q=boeing+stock
A single crash won't usually tank the company's stock, nor should it.
The stock dropped 5%. And your point would be...?
> A single crash won't usually tank the company's stock, nor should it.
This was two crashes. Caused by gross negligence. Yeah, that ought to put a dent in the stock price IMHO.