The DT class is simply the strongest position in this draft and any negative is going drop a prospect a bit lower than in a normal draft year with a weaker DT crop. Still is suffering this fate because he is perceived as lacking a bit of motivation and a slightly lower ceiling. He is going to get drafted late round 1 or early round 2, because of this perception, end of story.
People can criticize the other DT prospects all they want, but according to most scouts, their negatives and potential upside is better than Still's , so they will be drafted before him. It certainly doesn't mean they will be better pros, nobody can judge that till we see them all play at the next level.
And proud of it!!!