Oregon had only 47 meaningful offensive snaps against Wisconsin, excluding garbage-time plays like kneeldowns. That’s an extremely low number for a competitive game - by comparison, the games against Auburn, Washington, Wazzu, and even Oregon St hit about 70 apiece. In large part that’s due to an unusually high number of turnovers - four earned by the Ducks that gave them short fields (or in one case no possession at all), and one interception thrown that ended a drive on the first play.
That has two important effects when evaluating the game: first, it means that the statistical totals will be misleading - fewer snaps and shorter distances to the goal line mean that naturally the absolutes in certain categories will be lower than if a full game had played out.