I thought you weren't supposed to put your finger on the trigger until you were ready to fire?
If it was a photo op, why put a magazine in anyway? Most people wouldn't know the difference.
And if her stance is an issue, why would she do it like that?
Wouldn't her training kick in even if she were asked to pose for the photo? You don't go against your training, even when you are playing around.
I took a few years of martial arts, and to this day, if someone yells my name, my first impulse is to shout "SIR!".