The problem with the "Ticky box" type of job is that sooner or later (as has happened) a misper is found later having passed away. This was unfortunate and the A/C would not have made a difference, however when it happens again and the A/C is not even used who will get the blame? As sure as day follows night the CIM will point the finger squarely at Air Support and ask why we didn't deploy, and guess who we/you will point the finger at?
I don't know the figures but I'd imagine (guess) that somewhere in the region of 10% of Mispers are found by Air support? Most don't intend self harm but a few do....