cont.:Do you claim that there is no way to mitigate it?  What ways have you studied?  We could systematically make the same claims you are making for every single mode of backcountry travel.  Skiers get squished by a moose.  Runners are mauled by a bear.  Being "bear-aware" means traveling with a bell and making noise as far as alerting the bears, which is again even more common on trails that are physically more challenging, just due to "weeding-out" the less serious users.  Then there are sight-lines that are meant to be reasonable and grade-reversals to mitigate speed and other issues.