Again there isn't just some magic switch you can turn because its the regular season. The overall game doesn't matter but some things can be a predictor for the regular season. The line isn't just going to wake up and learn to block because its regular season.
The Colts under Manning traditionally lost most pre-season games....then won 12-13 games during the regular season.
Let's look at results the past two season:
Miami.....3-1 in preseason and 6-10 in regular season
Atlanta....0-4 in preseason and 10-6 in regular season
Philly....4-0 in preseason and 4-12 in regular season
Atlanta....1-3 in preseason and 13-3 in regular season
Yes....let's just over-react.