First off the position of the gun to the leg in the pocket carry position basically aims the gun in the direction of a major artery so if there was an AD/ND most likely you will bleed to death in seconds
Second: pocket carry is very restrictive in sitting and has no tactical advantage so getting to the gun under stress forces one to draw in a less then desirable position and cause of that can increase chances of an AD/ND
Poorly-thought out logic.
Bleed to death in seconds. Right.
Pocket carry is very popular and widespread as a practice. You do not hear of many problems happening. Most people do it in a responsible, thoughtful manner.
There are those of us who carry in the rear pocket. Where does that fit in to your scheme? No pointing at your leg, and no problem drawing.