Yeah, but the way a typical city PD discharges firearms makes the Mujahadeen look like professionals. The armed forces are much better at things like not having negligent discharges and, shooting what they're aiming for and finding a reason to shoot before opening fire. The police might not be able to handle a gun without five redundant safeties but a 18yo in a combat situation with a few months of training and an incentive to do their job seems to manage just fine.
The almost-ubiquitous Blackhawk SERPA retention holsters are a big contributor to this. The button you have to press to release the weapon from its holster makes it all too easy to hit the trigger before you intend to.