Most - if not all - of that is the fact that they have 11 commits. Only Georgia and Notre Dame have more in the entire country. Of everyone they're ahead of, only Boston College, Cincinnati (10 each) and Baylor (9) have more than 8 commits. Their average rating is good for them but not outstanding.
All that being said, that's still pretty good for them. The Huskers were interested in Wimsatt.