I think being dragged by the boat until it either depowered and stopped or capsizes is less worrisome than being separated. I guess I remember learning to slalom waterski and being dragged under water for a bit didn't seem that bad (i didn't give up easy so would hold on while impersonating a submarine). Also figure if you're being dragged and nothing seems to want to stop the boat, you can always disconnect (if you are using a snap shackle that will release under load) and hope for the best.

I didn't really think about breakage but then, what's worse being separated or breaking something...