Would there be liability lawsuits for this happening on public land? Might it be more a matter of them not wanting to do body clean up once a week?
there aren't that many accidents. It's also more dangerous to jump in ways that attempt to skirt laws (jumping near dark, trying to evade capture, etc)
This seems like something a liability waiver and an escrow account with money for body clean up (if things go bad) would solve. A little red tape, sure, but not illegal.