Thats the stupidest thing I've heard all day.
I've just pointed that there ARE other possible ways to remove mindcontrol without killing the controller. CLs are very situational in any way, but (you can interpret it as "when my enemy is stupid enough to leave those precious Adepts alone in his base, while they are also controlling something really, really valuable and dangerous for your foe's army") they can be used outside of the box.