My issue with Kevin White isn't his physical tools or his skillset or his appetite for the game. You can see those are at a high level for yourself.
He's raw. He reeks of a guy who, since he started, has been getting by on being bigger and stronger than the guy covering him. His route running isn't developed, he lets DBs get ballside of him all the time, he doesn't shield the ball with his body, he doesn't display a lot of smarts in tight man coverage. As it stands, an upper tier man coverage CB in the league should be able to nullify him quite a bit.
Like all basic skills, they can be learned and they probably will. The fact he lets DBs get into his face so much has probably helped his catching ability, which is pretty good. But he's every bit as raw as Coates or DGB - just in different departments. Would I bet against him being a successful No 1 receiver in the NFL? Hell no. But I'd expect it to take a while for him to learn how to negate the top CBs in the league.