if someone had told me I had to design my system to account for an aircraft that was in air and was stalled so badly that indicated airspeed dropped below 60 knots (and with the PF taking no corrective action to get out of the stall), I probably would have laughed out loud...
Looking at your location, it appears you didn’t design an aircraft system without feed back between the pilot's controls, and with a stabiliser auto trim system which continues to trim whilst stalled.