Calling in a bear that's fresh out of hibernation when you only have a bow is a hardcore tactic that not all hunters are brave enough to try. Think about it. He's starving and coming to eat a Sitka fawn in distress.
Especially when you're on the ground. It's literally you or him if you make a clean miss or your bow has an issue. YOU are his consolation prize, and he most likely wants to collect immediately.
That is exactly the scenario Melissa Bachman finds herself in on this beach in Alaska. She's not afraid...or at least isn't letting on. She knows he will smell fear.