“This has nothing to do with the engine controls.”
I’m not in aviation but am truly curious about the actual 737 MAX problem(s).
What is your opinion of 737 MAX.
Do not ever get on board one.
I'm far from an expert but when Boeing designed the Max they stretched it out some. That added weight so the plane needed bigger engines. However they could not mount the new engines where they had mounted the old engines (to big) so the mounted them higher. This gave the plane and angle of attack problem so they added a sensor to sense the angle of attack and adjust it if the software thought the plane was going to stall. But they only added one sensor so there was no backup if that one sensor was giving a faulty reading (very bad, Boeing) and they did not tell anyone about it (very, very, bad Boeing) now well trained experienced crews could deal with the problem but one not so well trained or not experienced crews couldn't and two Maxs crashed due to the faulty sensor (very very very bad Boeing)
See Post #29. jpsb gets it right enough.