There's no question there's a D1 player for a 6'8 guy who's got his lower strength, can put on the ball on the floor very proficiently, & who is an assassin shooter at every level like he appears to be.
But there's also no question he's gonna struggle defensively at the D1 level — at either the 3 or the 4. His arm length is the big reason his defensive ceiling in the paint will be quite low.