Harry Mann
Hi. The a/p is required for flight into turbulence, and its limits are virtually identical to what is defined as "Upset". So, the a/p could easily have been bumping up against its mechanical limits for continued select. Technically, then, the PF was (may have been) in upset when he "I have the controls"....? LOC came with the STALL, and the initial STALLSTALL may have been quite valid, exceeding the AoA threshold for warning as the ship climbed (rotated) smartly at .81M. Comes the MASTER CAUTION, and the CAVALRY CHARGE, and the workload (and sensory load) get rather.....extreme?
cheers