This is not this woman’s fault. Whoever put that 12G in her hands did a bad thing, and I pray that it only had one shell in the shotgun otherwise when it slammed back there is a chance of a slam fire.
Start new shooters with .410 or 20 gauge when you hand them a shotgun and make sure they can safely handle that before handing them a 12G, much less a pistol grip 12G.