“it points to American engineers who decided it was not a safety issue: an honest, and expensive mistake.”
No, it doesn’t. There are no facts that explains who made the decisions, but knowing Boeing, I can assure you that no engineer made the decisions. ALL decisions at Boeing are with the management. The culture at Boeing is “CHAIN OF COMMAND!” Not kidding. Boeing considers management infallible and engineers to be held in distrust. Boeing Ethics is simply a public relations gambit since their CFO went to prison and the 737 Max issues are kicking Boeing’s ass. (Next up, 787 certification issues coming to light!)
Boeing recently hired Satyen Yadav, of Amazon fame, to try to break that ridged 1960’s culture and create a more flexible environment to deliver products faster according to modern protocols. Six months in and rumors are flying that he’s meeting far too much resistance from the old guard to make any effective changes. I would make odds that he won’t make it to the end of the year before he simply resigns in disgust. This is good for Boeing competitors. :)