You know, statistically, it really isn't the case, but I agree with you. I guess in 2012 it was more consistent, giving the illusion of being better. There was more stability at the QB position and fewer TOs. I think that was the bottom line, giving the both of us more confidence. The 2012 offense with the 2013 defense would most likely have a better record this year. Here are the actual numbers:
(PPG, Rushing YPG, Passing YPG)
2012 33.6, 311, 130
2013 36.8, 315, 120
It is funny, we all expected the Vad led offense to blossom in the passing game. Lo and behold, TW getting 75% of the snaps produced more passing yards on average in 2012. Go figure.