I get what you're saying, but at the same time, I don't think that what went wrong here had anything to do with what the course was called.In what universe is it acceptable (read: within standards) to take a student on for "Advanced Open Water" certification with five or six dives, the fifth being a year ago?
One thing that definitely should have happened here was a pool session. Granted, an AOW course doesn't require that, and it makes sense that it wouldn't, since students taking an advanced class should be proficient in the basic skills they're building upon. It's been suggested in other threads that AOW should really be called OW II, or something along those lines, and I don't disagree--but would that have changed anything here? Is there any reason to think an OW II class would send students back to the pool?
PADI and probably other agencies recommend a refresher course for any certified diver who hasn't dived in 6 months or more, and at least a local area orientation for anyone diving in different conditions from those in which they were trained. But why shouldn't an advanced course serve those purposes? Is a pool session a required part of a refresher course, or can those be done in open water?
A pool session *is* generally a part of a drysuit course--if not a literal pool session, at least a chance to try it out in confined water vs. an essentially bottomless lake. But for the drysuit and all the mistakes made related to it*, this tragedy likely wouldn't have happened. After all, she'd already done a class in a similar environment with two wetsuits. All the other things that were wrong here probably wouldn't have led to her death if she'd been diving wet again, and fixing all those things might not have saved her if she were still diving a drysuit with no inflator hose and too much weight in her drysuit pockets. If the dive had occurred during the day, or she'd been given a light, perhaps the instructor would have noticed her distress, and perhaps she could have been rescued. Perhaps not. After all, Bob noticed and made efforts to save her, but was unsuccessful.
*I'm including the weighting issues with those related to the drysuit. I think we can all agree that most people use a different and usually greater amount of weight with a drysuit, and so even if she did a weight check in her wetsuit(s) or lucked out and got an amount of weight she could work with, she still needed to do another weight check with the drysuit. Also, yes, she should not have been given so much weight in excess of her BC's lift capacity. BUT it seems like she "only" had about twice the amount of weight she should have had, maybe less. For all the debate about whether drysuit divers *should* use their BC or only their suit for buoyancy, if she'd been able to use both, she might still be alive.