First, there are only 6 games within the NFC west that the Hawks would play, so they cannot win 7.
Second, we lost one to the Cardinals in Phoenix,
23-20
Third, the non NFC-west opponents we won against were Tampa Bay, Cincinnati, Bears, Eagles, and Ravens, while we lost to the (still out of the division, so I'm not counting the Cardinals loss) Steelers, Saints, Browns, Panthers, and Falcons. Still pretty close, and yes, it looks like we were a bit overrated in 2007.
I really do believe our quality of wins has improved so much this year. We have played one of the toughest schedules in the league, no doubt, and we still have a 9-5 record, which does not even come close to how good our team really is.