“We saw in these two accidents that the crews did not react in the ways Boeing and the FAA assumed they would,”
Complete CYA BS on Boeing’s part.
The way you get crews to react properly is to train them. But they didn’t get training, because Boeing didn’t want it to be a cost factor for airlines considering the updated planes.
Profit trumps safety for Boeing. Assholes.
It may be the pilot's fault for not being able to react to an emergency for which they were not trained, or the airline's fault for cutting costs and putting poorly-trained pilots in the cockpit, but it is all Boeing's fault in the end.
Boeing is selling a system, not merely a mechanical device and software known as an airplane. Boeing can easily foresee that competition will cause some of their customers to employ inexperienced pilots not able to deal with every emergency that a well-trained pilot with good airmanship could handle. The result is again foreseeable: passengers will die, and their airplanes will be blamed, fairly or not.
Boeing needs to sell not only the airplane, but absorb in their overhead cost an outreach program to monitor their customers and train their pilots to the point where they won't kill the passengers. It's easy to say that's not Boeing's responsibility, but if they want to sell their products and stay in business it is.