I stand by my point that if you use well known safety measures you reduce the risk level a lot. Specifically from your list: Mestre did not have proper safety (a total shit show from Pipin), Musimu was training alone, Leferme has a inadequate setup for what he was doing, Molchanova was diving alone in >30m (should have been a joke for her, but anything can happen). We'll never know for Adel Abu Haliqa.
I'm not even sure why I argue about that on the internet. I should go diving...
Also, the statistics I quoted include competitions. The point is that, safety or no safety, if you black out during a dive, there's a strong chance you'll drown.
>> I'm very well aware than many die in less well catered environments. I've lost spearfishing friends, and I've been part of search and rescue operations more than once unfortunately.
I'd expect anyone with such experience to not take matters of safety lightly, nor dismiss the grave danger of a blackout -with smilies.
Is there some hope that treating the seriousness of the difficulties one can come into during a freedive lightly, could bring more people to the sport? If the only effect of bringing more people to the sport is that more people die, then they're better off staying away.
Deaths are more frequent than that.
A total of 417 freediving accident cases were captured; 308 fatal and 109 non-fatal. [1]
Of those 417, 18% or ~75 were freediving proper (the rest were snorkelling, spearfishing etc). That was between 2006 and 2011- so about 15 incidents a year, 3/4 of them probably fatal.
Your comment specifically mentions competitions, but that is not really a good measure, because people often dive solo to go after records etc.
In any case, there have been several high-profile deaths in recent years: Audrey Mestre [2], Nicholas Mevoli [3], Loïc Leferme [4], Patrick Musimu [5], Adel Abu Haliqa [6] and of course my personal hero, Natalia Molchanova [7] whom, I should say, is not really gone and is going to come up any time now.
So, you know. Not exactly "very few" deaths.
________________________
[1] http://divewise.org/education/freediver-blackout/statistics/
[2] https://en.wikipedia.org/wiki/Audrey_Mestre
[3] https://en.wikipedia.org/wiki/Nicholas_Mevoli
[4] https://en.wikipedia.org/wiki/Lo%C3%AFc_Leferme
[5] https://en.wikipedia.org/wiki/Patrick_Musimu
[6] https://www.thenational.ae/sport/risks-of-freediving-apparen...
[7] https://en.wikipedia.org/wiki/Natalia_Molchanova