So this forum is about accident analysis, right? I'm going to defend Ken here on his contributions. He has brought more analysis to this incident than anyone else. He has held a position that leaving a diver is unacceptable, but also has pointed out the probability of her never surfacing. Dumpster makes a good point that by leaving her, she may in fact have been on the surface, but because they forgot about her, no one was even looking to see if she was in distress.
I think some of you are unfairly criticizing Ken's contributions as if he's defending the boat leaving her. I do not read it that way.
Here's my "personal" thoughts on this incident. Leaving a diver is unacceptable. However, after doing a little research about this dive site I think it's very risky to do a dive here without a BCD where the depths hit 300 fsw. It's very risky to dive in a kelp forest solo. You have no one to help you out if you get tangled in the kelp. And finally, adding the task of hunting always increases the possibility of an accident. It's just a simple fact more accidents happen to hunters. All of this combined, "to me" is a recipe for disaster. It may have nothing to do with what happened, but I would not do this dive that way. Furthermore, I don't know how close these dive operators anchor to the rock, but it sure looks like you're basically diving around an island where a short swim can have you hanging on a rock, assuming the current is manageable, which it sounds like that was the case on the day of the incident.
We will never know if leaving her contributed to her death or if it was purely coincidence. At a minimum the operation should be held accountable for that action.