Agreed. I think the general statistical pattern falls pretty neatly into a pattern where technical difficulty * objective hazards * repetition = increasing mortality, but there are enough noteworthy exceptions to the pattern to preclude any of us knowing how our particular coin-flips are going to turn out, much less that dialing our risk back to a particular level is going to guarantee that we die peacefully in our beds at an advanced age. Renotto Cassaratto (sp?) falling into a crevasse within view of basecamp after descending K2, Daryl Hatten falling out of a tree, Mugs Stump, Goran Kropp, are just the first few and I'm sure there are plenty more.
My Dad wasn't a risk-taker, and action-sports had zero appeal to him. He did, however, have principles that he was determined to live by despite the fact that doing so entailed certain risks. He loved to jog, and it brought him a profound sense of peace and fulfillment. He also had atrial fibrilation and a pacemaker, and knew that physical activity above and beyond a particular threshold would elevate the risk of heart attack, etc. He also knew that an arrythmia or coagulopathy, or some combination of the two, could potentially strike him down while watching TV. So he kept jogging, and about 18 months ago he sustained some kind of a cardiac arrest while jogging on the Sound To Narrows, fell and broke his skull on the concrete and sustained a massive TBI. He spent the next several months hovering between a coma and a vegetative state where he could open his eyes and that was about it. Ultimately, his body was beginning to deteriorate so terribly that my Mother finally agreed that it was time to let him go.
His accident happened three weeks before our youngest daughter and his final grandchild was born. Our oldest was four at the time and loved her Papa as much as anyone can love anything in the universe. He had an awful lot to live for, and it's possible that if he'd been able to accept a life where he'd never exert himself out of fear of overtaxing his heart that he could have lived many more years. But he couldn't. Our family suffered terribly as a result of his accident. Watching someone persist in limbo between death and consciousness for months is many orders of magnitude worse than someone simply dying.
I was never sure if he understood the risks that I took, which despite being completely prosaic in the world of outdoor sports, always seemed completely bewildering to my parents. On some level, I think they both understood, and never held it against me. When he refused to stop being active - I understood, and I never held it against him. Even though I would never take the risks that folks pushing the boundaries take on, on some level - I understand their choices. You can do that, and mourn their passing even when you are at the epicenter of the grief their death causes.