That area is generally a shit show. You can literally walk up a cat track and drop into sketchy terrain. This area is sandwiched between Alta, Brighton and Solitude resorts so I think people assume its generally safe.
Shame on the photographer for putting her in a position to get hurt. He was the "experienced" one and the 19 year old girl trusted him. Even if he couldn't see the obvious red flag of a slide right next to that slope, stuff was sliding naturally over the place that day as it had just snowed on top of a well documented shitty snow pack. The poor girl would have been dead if that party hadn't been there at the right time.
Last year there was an accident in the same general area but up high on the ridgeline that involved a pro, athlete, model, whatever making glory turns for the camera. Avalanche: Hellgate | utahavalanchecenter.org
Why not try to get a candid shot of someone having a blast riding powder. I just don't understand staging a picture, especially if your putting someone in danger. That powder up to your neck shot that skiers like is getting kinda stale anyway.