I don't think what she did was any more wreckless then squiding on a bike, stunting on the highway, and any such similar risks.
It amazes me that you guys are sympathetic to the "poor photographer" who had to witness her death, but the bride is stupid.
Maybe he was the one who suggested the photo shoot location, the pose, and her positioning and she gave deference to his professional advice - that is typically how photo shoots go when there's a professional photographer involved. Maybe he even assured her that he's done tons of these types of shoots in the exact same location and showed her his portfolio pictures of other brides posing there.