I was rooting for the Colts but I never root for teams who pull their starters, most especially if they are going for history. You think Peyton Manning is OK with having a years worth of good play get thrown down the drain? Yes, he wants to win the Super Bowl again but he has a chance to do something that no other QB has ever done and he's getting denied that opportunity by a skittish coaching staff.
And who at all couldn't sympathize with the fans booing loudly at the game right now. They invested their time and money in supporting this team and now they are just going to concede in front of the home crowd?
There is no conclusive proof that teams who rest their starters will perform better in the playoffs. They already get a bye to rest up, a tremendous advantage, but why go a month without playing a meaningful game?