It is important to note that the entire holster fell out, not just the firearm. Holsters that use your belt are superior as the firearm will stay with you until pulled from the holster. A retention system for the pistol adds another layer of protection.
Secondly, while liberals will claim this is why we should not have concealed carry, nearly 25% of all police officers shot are shot by their own sidearm.
“nearly 25% of all police officers shot are shot by their own sidearm.”
It used to be about 20-25% a couple of decades ago.
I do not have the latest number, but it has dropped a large amount.
I do not recall the last time that an officer was shot with his own gun, but it does happen.
In every tactical firearm handling class I've ever taken, the instructors always say something to the tune of, "the holster is more important than the gun." They also mention that keeping the gun close and tight to your body is critical. The bad guys often learn disarming techniques from convicts in the prison system and parolees in the bad neighborhoods.
If you have a shitty holster or one that falls out of your pants, your gun isn't going to come out of the holster when it needs to or it's going to come out when you don't want it to.
I personally always recommend Aker leather. Love their holsters.
That's the key point here. So it seems to me that this is not an open vs. concealed carry situation. It's a keep-your-firearm-secured situation.