Finish the fight....
Massad Ayoob wrote a great LE item in a gun magazine about 4/5 years ago where he makes the same point.
As a armed professional, you can't be risk adverse. Ayoob discussed a retired AK State Trooper who taught a sworn LE class called; Finish The Fight!
It's more & more common for some LE officers to be scared or more concerned about lawsuits than to do their jobs properly.
I think it's a selection/recruitment/supervision issue in 2013 but there are other factors.