Thanks for the link Kevin. I've met Doug a couple of times. I think this is mostly a good article, though I have one disagreement and at least one caveat.
Doug writes:
" Is it a bit disorienting if the ditched aircraft does end up on its back? No doubt it can be, but that doesn’t appear to have any significant impact in the real world of general aviation ditchings. Is training helpful? Sure, it could keep you out of that small percentage of fatal ditchings, but is unlikely to make a big dent in the overall stats."
A couple of years ago I took a day-long underwater aviation egress course in Victoria, BC from Bryan Webster and his team. I found it invaluable and highly recommend it not only to seaplane pilots but to anyone who flies over water much.
I don't know how much improvement in survival rates Doug Ritter would have to see to accept that training does "make a dent". In the end, the statistic that matters most to me is how much more likely I and my partner are to survive ditching my wheeled aircraft or flipping my seaplane. I am certain that my odds went up significantly as a result of that one day of egress training. The difference in my reactions between the first time and the third time they dunked and rolled me inverted in a pool in their "SWET" device was significant. Like many things, the difference between reading about it and actually experiencing it is enormous.
The other issue is if and when to let go of the controls in a ditching or other forced landing. Over in the COPA (Cirrus Owners) forum there is a current thread started by our PhD safety expert and statistician, Rick Beach, titled "When You Crash . . . Get Your Hands and Feet off the Controls!" He starts with a frame-grab image of Indy Car driver Helio Castroneves mid-crash. As confirmed by another Cirrus driver, orthopaedic surgeon, and amateur race car driver, it is standard training.

At least in terrestrial forced landings, the evidence points to ankle and wrist fractures from staying on the controls. In fact, one foot fracture is called an "Aviator Fracture" by orthopedic surgeons. ("The name arises as it was frequently seen in aircraft crashes (presumably on landing), when as the plane comes to a sudden stop, the rudder bar is driven forcibly against the middle of the sole of the foot." From Radiopaeia.org) Before you dismiss the significance of "only" a broken arm or ankle, consider the extra burdens this places on successful egress, swimming to shore, or other post-crash survival activities.
I'm not as clear on this point as on the value of egress training. I suppose that in a water ditching there may be some value to continuing to "fly the flippin plane" after it hits the water. Maybe if I'm about to slam into a six foot swell, I'll assume a "clutch in" or other brace position.
I'm hoping Contactflying chimes in with one of his real life crash stories and lessons learned!
Pierre