Maybe it just needs to be a better bridge? I'm no expert or architect, but I'll go in with you and take a look, and help out with any improvements.
Also: knowing not only that people were hurt, but also HOW they got hurt may be important. In Mark's case, it looks like the rear wheel slid off while the front wheel was turned a bit, which would have thrown the whole thing sideways and dumped him. Solution: wider bridge.
But if others for a wheel stuck in the rocks on the exit (and there looks like potential for that), then that's a different issue with a different fix.
Mark and I were discussing that part of the problem in that trail is there's no warmup, just straight into the hard technical as soon as you start. Rock landings don't help either.