If they continue winning the way the have been, no it shouldn't.
They're 6-0 with an average of 50.2ppg on offense and 9.7ppg on defense. The closest game was a 31 point beat down of Nebraska(currently ranked 14th).
The Big 10 isn't anything special but if they're 13-0 with an average margin of 40 points, they should probably be the team that faces Alabama/LSU.
I don't even like Wisconsin and hope they slip up somewhere(same with Oklahoma/St) so Stanford can go to the championship. I just think it would be messed up to leave Wisconsin out in the cold if they beat Nebraska, Michigan State, Illinois, Ohio State, Penn State and whoever they face in the Big 10 championship by an average of 40 points. People ride Boise State's jock for running up scores in the WAC. Even when the Big 10 down, winning by 40 on average is no joke. I highly doubt they can keep it up but it would be pretty unbelievable if they pulled it off