The guy is 6' 2" and 213 lbs. He just ran a 4.5 40 and he had nearly 900 yards and 9 TDs in what everyone thought was a disappoint year in the SEC. Nobody is saying take him in the first or even the 2nd. But as a mid-to-late round pick he's a good option. He'd probably go in the 3rd if not for his legal issues, so you might be able to get him very late which would be great for a guy with that much talent from a big program with a history of turning out NFL WRs. And FWIW, I have concerns about his concentration and commitment to being great. And that shows up in some occasional bad drops and lackluster route running.
And, I'd feel the same about him if he went to say Ohio State.
You act like people on this board don't know or talk about other players that went to other schools. Basically every prospect is talked about here and everyone has their favorites as high round picks or guys they would take flyers on in later rounds that fell for performance, injury, or legal issues.