The eventful flight before the crash flight, had the Jump-Seat pilot save the day by giving an independent assessment of the situation, and finding the correct solution.
Maybe an independent electronic Jump-Seat computer could have done the same job by evaluating the overall picture...
IF Airspeed increasing
and Window not full of sky
and Sense of Negative Gee
and Trimwheels going the wrong way
and Pilots obviously struggling with controls
THEN Advise, Turn off all automatics.
Or maybe the Jump-Seat passenger was just lucky, such as 'What happens if we turn this off..?'