From what I understand, the decision to change it from using 2 sensors to 1 sensor was specifically because if the system used 2 sensors it was considered a safety system requiring simulator training for the failure scenarios.
IMO Boeing should be required to separate the military and civilian parts of the company and allow the military side to build civilian aircraft based on existing civilian models. I honestly think it's the only way to save the company, because right now airlines, regulators, pilots and passengers do not trust the current incarnation of Boeing. With their shady culture, we don't know what else is hiding in the airplane. Culture issues aren't solved overnight.
I fly a lot of miles and am the type of person who keeps the airlines in business, and I will not fly on a 737 MAX for the foreseeable future. My coworkers are in the same boat. I don't see the American carriers being able to return these planes to service before 2022. This is absolutely an existential threat to the US aviation industry, and I think the only solution is to split Boeing up.
