Wouldn't poor instruction be the instructor's fault?
Unless this wasn't taught? And where was the DM all this time? It works both ways. Perhaps the DM wasn't taught properly either...
Agreed. The DM shouldn't have allowed him to do the dive in the first-place. The DM should have insured the diver was returned to the boat safely and not just abandon him. The DM knew he was a new diver. You don't abandon divers for which you are responsible for.
I don't believe people require to be frightened to learn how to dive properly. That's why proper training is needed.
I don't want to sound too critical of the OP, but this little saying comes to mind: "No amount of education (or dive training) is an antidote for stupidity."
I won't blame the instructor for this one. What if the diver embolised or shot up under the dive boat and got chopped up by the props because he did an uncontrolled ascent with a live boat. In my opinion, the diver made some serious errors, Being unable to control bouyancy when diving with a bunch of people in the ocean and a live boat can be very dangerous.
The divemasters on these types of dives do not follow customers. They LEAD the dive and everyone follows them. They are unable to follow people and provide much assistance because they are burdoned by pulling the float. If they waited 5 minutes for some diver to get down, then they would likely get blown off the reef or wreck which ruins the dive for everyone.
The dive guide descends fast and everyone should be able to see the rope as he descends. I worked for years as crew in that area and I made sure that people thought of me as a dive guide not a DM or babysitter. I did not check their air, I did not look for them if they disappeared during a dive and I did not check their weighting before a dive unless their choice looked stupid. Their instructions are to watch their own air, descend as fast as they possibly can without discomfort and keep the dive guide within view. If they loose visual contact, then they are to slowly ascend. If they fail to do this, then their day may get very interesting.
People are generally directed to dive with a buddy, but many choose not to or split up from their "buddy". When drifting in a 1-2 kt current in 100 ft, each person needs to be responsible for theselves, they can NOT depend on another diver to swim back up current and help them. I do not do this kind of diving without a pony bottle.
Sounds like we disagree on a lot of issues, but I am quite sure that in order for a diver to reach their full potential, they need to pull a few stunts which they come away saying "I'll never do THAT again". Divers, especially men, often need to test their limits. Women are less inclined to do so and will chicken out when they feel too stressed. I much prefer diving with someone who bails on a dive rather than someone who gets in over their head and endangers everyone.
Diving is supposed to be fun, when people far exceed their envelope of experience and qualification, it's no longer much fun for me. I've seen too many people get killed when diving around me and I would rather be harsh than understanding when people make bad choices that are dangerous. This forum can help people to make better choices, if they listen to good advice.
In all honesty, the OP's instructor(s) probably did suck, but that still does not absolve the certified diver of personal responsibilty.