Here's how I view it:1. Gave up a chance at history (perfect regular season and potentially perfect full season)2. If you win the Super Bowl, your team and fans always ask "what if Peyton stayed in the last qtr"3. If you lose the Super Bowl or don't make it, you blew a chance of at least going 16-04. Players were completely deflated. This could DEFINITELY negatively impact the team from the top down5. The fans were upset and rightfully so. They actually booed. That's an incredibly strong statement for a home team that is 14-0 and winning. Especially when those fans are Colt's fans who are pretty solid fans overall6. Now they go 3 weeks without meaningful action most likely. I highly doubt they play those starters much next week + the bye.7. The media swarm that will result from this could be a moderate distraction. Sure, the players will blow it off but the questions will still be asked. I think people underestimate the effects of these distractions8. It goes against the integrity of the game, IMO, and is a slap in the face of Indy fans and NFL fans in general9. This possibly allows the Jets to make the playoffs. Of all the teams in the AFC, the NYJ may match up the best against the Colts and may face the biggest obstacle.10. Your backup QB was put in a terrible situation and probably has 0 confidence now. If for any reason he's called to action, this short stint was much more harmful than helpful. 11. If you didn't care about winning this game, then why risk Peyton and the gang for 3 qtrs? Either play him a token series and pull him or let him finish. Worst possible time to pull him.All that being said, at least nobody got hurt in the final quarter even though Manning has played over 800 quarters of football and not gotten hurt. I think there are so many negatives that come out of this and such a minuscule amount gained. I completely get the risk of injury. That risk is there every week of the year and it's there in the playoffs too. I think the confidence gained from going undefeated outweighs that risk, IMO. And that's ignoring the rest of the above that I posted.