sounds like hubris to me, but I understand your sentiment.
Hubris? Maybe...
Of the few dozen misadventures I had read about, all of them start with an obvious diver error. Diving too deep, staying too long, ascending too fast, predictable equipment failure based on known deficiencies, things like these. I don't doubt for a minute that random perversity crops up but it should be way down the list.
An appropriately sized pony bottle and a lift bag cover a wide range of equipment failures and even the OOG diver error for which there is NO excuse. Why do we keep talking about OOG emergencies? There is no reason for these to ever occur. Yet we keep haggling over them as though they are a daily occurrence. At least for what I consider recreational diving (no planned deco), it is fairly trivial to check the SPG once in a while. More often if you are deep.
Solo diving is now an established specialty (SDI) so the constraints should be well understood. Now all we need to do is push that training down to OW or AOW so that everybody has access. I prefer to see it pushed down to OW so that every single diver is self-sufficient when they do their first non-training dive. Not gonna happen!
The thing about buddy diving is that it leads a diver to believe that no thought about risks and contingencies is necessary because their buddy will always be there to save them. That is the essence of all OW training classes. Your buddy this... Your buddy that... But there is no good reason to believe that a buddy has any capability in this regard whatsoever. A better plan is to be prepared to take care of yourself.
There are hobbies like flying and sky-diving where you just don't have a buddy. One way or the other, you will come down. You are singularly responsible for your safety. There are vocations with similar characteristics - the electrical trade comes to mind (after surviving 40 years of it).
I guess where I am coming from is this: Agencies make diving seem like a safe sport/hobby. No big deal, spend 20 hours in training and you are good to go! Don't give a moment's thought to all of the possible catastrophes because you will always have a buddy to save you. At least for flying and sky-diving, the risks are well known right up front - you're coming down. But diving is made to seem like a cute and cuddly way to pass the time watching the pretty fish and drinking kool-aid.
I do understand that there are team events like cave diving but that's not what I am talking about. I'm just thinking about ordinary recreational (no planned deco) diving to reasonable depths.
I also understand that if you dive long enough, something bad will happen. Well, if you live long enough, something really bad will happen.
Richard