It's weird that you think that. First off, I don't ever see him bailing out because of a fear of getting hit. If anything, he does the opposite. Secondly, you say it as it's a bad thing if he were to do it. I'd be happy if he gave up on a play in a week 5 game in the middle of the first quarter instead of taking an unnecessary collision. If he gets injured, the Bills season is done.
How do you feel when you see guys like Rivers and Manning throw the ball into the ground and ending a play to avoid contact?