I don't see a problem? The device can be used either way depending on the desired level of friction and her right hand looks fine to me. The left is a spare.
You turn everything the other side up and she is going to have to hold her hand up in the air to brake. She has it right. When she pulls down with her right hand the friction will be applied.
Her right hand is facing down for braking, it's just hard to tell in the pic. She would pull down to brake. The left hand is just to help guide the rope.
Rappeling into the sunset off Ridgeback (5.5) at Ridgeline. AJ was nervous about her first rappel, but the mountain lion encounter ten minutes later put things in perspective for her.