How do you even grab that one out of its holster smoothly?

You have to take it with your left hand behind your back, then pop the catch on the holster, then lift the barrel clear of the holster. All that while under fire or in a deadly situation.

All I can imagine is this guy dead on the ground with his left hand awkwardly caught between his belt loop and his pistol, bleeding from the asshole he accidentally shot himself in.