Let's look at some of those teams that they've destroyed.
Texas A&M - 3 and 3 and in 4th place in the SEC West - slaughtered them by 2 points.
Syracuse - 3rd place in the ACC-A - whipped them by 3 points.
They did do much better against traditional rivals such as Furman and Georgia Southern, and ran up the scores on folks with losing conference records like 0 and 6 Louisville, 1 and 4 Wake and 2 and 5 FSU.
Clemson did struggle the first part of the season, as their QB situation wasn’t settled.