Here’s what is also not discussed re this subject: The elimination of the position of ‘flight engineer’. The FE was responsible for all of the aircraft’s systems. The pilot and FO flew the damned plane.
Clearly there’s room for a few bucks more per ticket and design a systems engineer back into the cockpit.
We have decades more to go before we can rely upon computers for autonomy. If nothing else, that is the overarching lesson from all of this (plus trained pilots responsible for nothing else but flying the plane).
Primary responsibility of the FE was monitoring the engines. FADECs and improved engine reliability have pretty much eliminated the need for FEs.