But he did exactly what you asked him of him for 15 straight games. At the last moment, when the game was out of hand, he erred on the side of self preservation.But what you're doing is justifying (note: not being used in a negative connotation here) why he quit. Injury. Pay. Not liking his boss. All well and good. But, the fact is you keep saying "committed" when you mean "good player." The direct opposite of commit is quit.
I'm not saying that you aren't. But I try my best to remember that these are real people, who have goals, aspirations, feelings... They're human beings. I think a lot of fans lose sight of that and simply want these guys to fight to the death simply so we can win our FF matchup, or bragging rights for a week.
From a financial standpoint, if he had been injured in the waning moments of that game. The team would be that much more screwed heading into the next year. For what, would it have been worth it for the state of the team moving forward and his career?