The Pack made many, many, more big plays than the Saints. They shut them down multiple times in the red zone (20% red zone efficiency for the Saints), they absolutely destroyed the Saints on the 4th down attempt and the final goal line stand. In the end Petyon took the ball out of the hands of his best player and handed it to a rookie, sending him into a woodchipper of a defensive front that had mauled their offensive line all night. The only reason it was even close was a defensive shell at the end and Drew Brees showing that since joining New Orleans he's been probably the best QB in the league.
Their final touchdown drive was puzzling, the Saints were playing the clock like they were down 2 and could just kick a field goal. There were multiple plays where they huddled and used almost 30 seconds of the play clock. It was a 3:15 76 yard drive, by comparison their final drive that ended in the miserable goal line stand was 80 yards in 68 seconds.