Disagree, she had time to raise her arms to the side and communicate with the group about the threat, which was very selfless and heroic in its own right, thinking of the group before her self and using what little time she had to insure their safety instead of her own. 

Heck she could have turned on her heel and ran back down the group leaving somebody else to deal with the bear.

Point in fact however she could (note I did not say should) have used that time to deploy spray or firearm. And for what it's worth firearms are easier to deploy quickly than spray in such situations.