Originally Posted by johnso29

That's correct. The test pilot was trying to demonstrate the stall prevention feature which includes Alpha Floor. Alpha Floor is when the logic pushes the thrust to max power and locks there so recovery occurs.

Unfortunately, the test pilot was some how unaware that this feature is unavailable below 100 ft AGL, because you don't want it to activate as you are in the flare. By the time he realized it, it was too late.