It's unfortunate that the two baby calves had to be orphaned.  I wonder if relocation was ever considered as an option? Alaska is a big state..... we used to relocate animals. Maybe not anymore huh? Yes, I am sympathetic to the people injured and am so glad no one was killed. I pray the woman in the hospital recovers quickly. But keep in mind, they were here first. Encroaching on their regions comes at a price. Education on wild animal behavior is also good knowledge to have as there are right ways and wrong ways to prevent an attack.
First of all, I have not seen anything reminding people to..MAKE NOISE WHEN YOU'RE IN THE WOODS. ANIMALS HAVE EXCELLENT HEARING AND WILL DO WHATEVER THEY CAN TO AVOID YOU AT ALL COSTS. DO NOT INSIST ON WHAT YOU WANT TO DO, GIVE THEM THE RIGHT OF WAY. SILENCE IS GOLDEN BUT COMING HOME UNSCATHED IS A FAR BETTER ENDING.