You make a some very convincing points. I agree with you.
A couple weeks ago, my dd was in the children's hospital, and her roommate was a high school girl who got her leg broken in a soccer game. It wasn't just a simple break, either. The poor child had innocently collided with an opponent, and while they were both still down on the ground, another girl from the opposing team came over and deliberately stomped on the child's leg with cleats. The break was really really serious, and required very sophisticated orthapedic surgery and high tech materials to fix. Worst of all, this poor child was in agonizing pain both before and after the surgery.
I can tell you that after hearing about that, I was horrified, so my previous post was colored by this incident.
I was wrong to suggest that rock climbing is as safe as, say, chess.