Those photos scared me as well...Just a thought on this because I know stuff happens, but wouldn't it be a good idea to wear a good thick pair of gloves on your bow hand? Just a thought.
You would think somebody would invent some sort of safetyprotectorto prevent this. Maybe something out of kevlar which would be made to deflect the arrow off the hand. I don't believe it would have to be a full glove, but it could be incorporated into a glove. Some gloves are fine for shooting. Personally, I wear silk glove liners sometimes wile shooting. They are nice and slick, and the bow easily goes into position.