I disagree, the situations where you are not fully on the ground but still want those things are minimal, thats a go around need at that point. I bet it would be set off way more accidently then it ever would be on purpose. The systems are also highly redundant so its extremely unlikely they would fail and there would be a valid reason to override the computer.

Plus even in this case it wouldn't have saved them, it was too fast too far, plus Im sure there would be some unpleasantness if both engines went full reverse while one landing gear was still not on the ground, thats gonna be some yaw right there :p . Its kinda like saying what if I need to override ABS?