Anyone who holds a gun like that should be nowhere near guns. A gun is not a freakin’ fashion accessory.
Hollywood films often portray guns being held and used in an unrealistic manner.
Ever see all those films in which a tiny "kick-ass" woman holds two machine guns, one in each hand, and barges into a room, both machine guns blasting away.
I assume those are lightweight plastic toy guns. I don't think a man can simultaneously shoot two machines guns, one in each hand. They're heavy, no? Plus there's the issue of recoil.
Perhaps this armorer, who grew up around movies, confused movie reality with actual reality.