The Bears didn't punt. In 10 drives, they had 3 TDs, 3 FGs, 2 INTs, and 2 ToDs. So 60% of the drives resulted in pts, and 30% in TDs. GB had 11 drives, they had 4 TDs, 2 Missed FGs, 4 Punts, and the EOG. So they scored on only 36% of their drives. If you hold an opponent to only 4 scoring drives, you typically win.
The Bears won a game where they had no takeaways on defense and turned the ball over twice on offense. Something they rarely do on either side of the ball.