I don't think that's the reason at all . People are out large game hunting whether it's whitetail , elk , grizzly , moose ,what ever and it's not their first thought to shoot one if they see one.
Some claimed as they viewed it's face through a rifle scope it looked sort of human. I grant you if they are being chased and threatened some have fired wild shots at them according to some stories but for the most part when you're out hunting if you see one your first thought isn't to blow it's head apart and I think most hunters think the same way .
Now on the flip side if you are actively hunting one to kill it that's another story . If I was doing this I wouldn't be alone and I would have the proper gear and weapons where
fear of being ripped apart isn't really high on my list . 5 guys with the proper night vision gear and AR10's , the only thing running scared would be the bigfoot's if that was my sole goal.
But I'm not pro kill