There's a study, perhaps by Force Science, that found that within a few yards even untrained shooters can reliably hit the target.
This can be reduced down to simply noting, "proximity negates skill."
Even a blind person can shoot and hit reliably with a contact shot. The closer you are, the less skill needed to hit your target. Sight picture, sight alignment, trigger control, weaver, isoceles, leaning into the shot, etc. all goes out the window when the muzzle is pressed against flesh and often when the aggressor is so close that even a dramatic disruption of the POA or intended POA (if not actually aimed by sight alignment) still results in an POI on the bad guy.