This may be one of the articles that prompted your last comment Bernini, but Wilson just got shut down by a bunch of youngsters (very talented ones) out in Vegas. He has not improved in the last year or so as much as you'd expect for an uber-talented young guy.
I think it was Wilson's versatility as much as athleticism that got him so much acclaim early on but that may have also contributed to his lack of dominance in any one area. For instance, why was Jamil playing the post against this Georgia team? He is a wiry, wing player who clearly has not mastered his outside shot, perhaps?
FWIW, every time I have seen Wilson play, his handle is very good for a taller player, but not Magic Johnson-great or anything. His shot-blocking ability has definitely been impressive though.