That's revisionist history. First of all, when the defense scores (which is, by the way, a good thing) it takes away an opportunity to score for the offense, takes away time of possession, and other performance statistics.
Secondly, you can't "uncount" a score by the offense on a short field. While the defense set it up, the offense did score.
Third, you have to consider situational football. The offense goes into a very conservative mode once the game becomes out of reach of the other team because ball protection becomes more important at that point.
The offense is a bit lethargic. That much is undeniable. There is enough to complain about on offense without making things up to attempt to make a fallistic argument in favor or your position.