Maybe I am wrong, but a lot of mocks had him lower. I only remember because I was against drafting him when people thought the Pats would draft him. I knew I referenced several credible mocks that had him a low first/early second. Maybe it wasn't universal believed though as I remembered.
I never got the infatuation with him. I felt he was mostly effective at the bull rush in college and you aren't successful at the bull rush as your signiture move unless you are bigger than Gholston is.