He doesn’t blame it on that fancy quick draw 511 holster but it seems to me a design that would simultaneously require thumb pressuring in the area of the safety (to enable release of the weapon holster) along with a trigger finger press on a release (again a secondary release of the weapon to the holster) is just plain asking for trouble.
I’ve got several 1911s...most have three safeties of a sort. The real safety (thumb), the grip safety, and a firing pin safety (most modern designs). Add that to your carry-with-you-safety (your trigger finger) and you have a total of FOUR safeties.
Now couple that array of safeties and put in a holster that is supposed to allow you to draw a 1911 quickly but can result in the defeat of two of the 1911 safeties and you have nothing but eventual trouble.
I would not use one of these holsters.
I use a pocket holster with a Ruger 38 special revolver. Works nice. I even sleep with it with absolutely no discomfort. I prefer the revolver because of not having to charge the weapon to use it. Does that make it more dangerous? Maybe. I’ve had no problems, but I know to keep my finger away from the trigger. I takes real pressure to pull the double action trigger (there is no hammer at all), but I wouldn’t want a kid to stumble across it, so I keep it in my pocket all the time.
There is no safety.
I could probably argue that a semi-auto pistol with a safety and a need to chamber the round is more safe, but it is also two additional steps before you can fire in an emergency.