Why, because if I disagree wholeheartedly with you, it's because I'm a homer? I've repeatedly posted here that I'm a 49ers fan.
But here are the facts:
Every game is a do or die, lose one and you're out
The Redskins are going on the road against Philadelphia, a bad team, but certainly still a dangerous one, and a division rival, no less.
In fact, the Vegas line for the game closed at -4.5, hardly a blowout from a completely objective outside source
If you think RG3 is physically capable of playing, and gives you a better chance to win, you HAVE to play him if your'e in a do-or-die situation. And you know what? It WORKED. So I have no idea what your problem is with the decision.