but it is kind of actuated just not moving, just like loading the bullet into the gun waiting for pulling the trigger, which here means the TLA ＜44°?
Yes.
The wheel spin > 60kts is enough (airground logic does not need to be in ground mode)
Therefore if you bounce,the wheels would be spinning, THAT would be your bullet
But it caused so many hard landings!
No,pilots not appreciating the importance to touch with thrust idle or and late flare do.