I don't know either! But I'll hazard a guess... I assume you are referring to when John said:
"This is why a traffic cop cannot become a MA person because the lack of combat intend."
My old Escrima instructor used to say that in a real, violent assault, don't be merciful. Before going on, he would ask if there were any cops in the room, because what he was about to demonstrate was probably neither ethical or legal for police work, but it just might save your life.
FWIW, he was talking about attitude and intent more than about some idiotic, "deadly" techniques. That was his perception of applying MA. Not about safely controlling someone, or worrying about a "use of force continuum", but about survival.
Perhaps John was making a similar point?