Yes but AF447 was caused by the pilot flying forgetting the basic rule of fly the correct "pitch and power" when you lose situational awareness. If he had left

Yes but AF447 was caused by the pilot flying forgetting the basic rule of fly the correct "pitch and power" when you lose situational awareness. If he had left the controls alone nothing would have happened and the errors would have cleared when the sensors defrosted. The problem was further compounded because he took back control from the co-pilot, who was correcting the situation, without asking and reapplied the incorrect inputs. By the time the plane was going at 60kts IAS at cruise altitude it was so far out of the normal flight envelope that the computers started sounding erroneous stall warnings as the plane speeded up again and it wasn't until the captain came onto the flight deck that the situation was understood fully and by then it was too late. Whereas in this case an undocumented system causes the plane to seemingly automatically and repeatedly attempt to fly into the ground if there is a sensor malfunction. The pilot has a short window of time, I don't know like 30-90secs?, to figure out what is going on and switch off some specific obscure switches to disable the malfunctioning system and then wind the trim back manually before the plane becomes uncontrollable.