Quick Kill/Active Kill is not operationally deployed on any tank we have; the Army is still dithering about it. They can’t decide if they want that or they want to wait for MAPS: http://breakingdefense.com/2016/04/army-pushes-missile-defense-for-tanks-maps/
That’s true, one issue are these systems are easily defeatable.
I wouldn’t bother with them.
They are working on a laser system that I think is going to be the best solution.