[wtd]

It's not just the toggle...this could not happen because of a stroke - given the efforts made by the co-pilot with his intentional act to disengage the pre-programmed flight plan/ auto-pilot and resetting to the angle of descent while maintaining speed.

[Jewbacca]

Correct.

The only way (pre-tape of the door banging) this could have been an accident in the first place would have been if they mis-entered the destination into the autopilot and somehow didn’t hear the ground avoidance alerts (”PULL UP!” Buzzz!) until it was too late.

That theory is obviously now bogus given the input into the system and the locked door/banging/etc.