They were not just impressive games, they were two of the most impressive performances in history. Doing 200-200 is extremely rare against any level of competition. Michigan is not that good of a team, but Robinson is by far the best player in the country.
Nobody is by far the best player in the country this season. Robinson might be the best player in the country, but it isn’t by much if he is. If you’re that much better than everyone else, you don’t throw 1 TD vs 3 INTs in your biggest game so far this season. On the other hand, when Auburn played a very good South Carolina team, Cam Newton threw 2 TDs vs 0 INTs and ran for 176 yds and 3 TDs.