Dang ! now that's a wipe-out, fortunately not too bad.
When I was body-surfing regularly, I realized that most of my rides ended in wipe-outs. I realized that I enjoyed the wipe-outs. So, for a while, I decided to 'cut out the middle-man' - not even bother trying to catch wave. I would just put myself in a position to get mowed down by it, standing about 25 yards inside the impact zone on medium surf.
I knew a guy at the Y who had broken a neck vertebrae while body-surfing in La Jolla. So I learned to always have my elbows over my head. I got bottom-slammed hard once in that position - right on the elbows.
I think "out-witting" Murphy is probably more important than typical survival things like laying in a good supply of toilet paper or 5 gallon bucket.
Having toilet paper won't kill you, but a bad accident can either kill you or injure you bad enough to hasten the time of your death.
I agree, it can be a little morbid if dwelled on.
However there are plenty of opportunities for gallows humor and thoughts.
I'm 56.