It sounds to me like GP was merely taking what is commonly and historically known to be a phrase that racist (or, in the least, not so p.c.) white people say about blacks and trying to turn it on its head in a humorous way. While there may be some angry, reverse-racist undertones, it seems like a pretty benign comment to me.
Honestly, I was more taken aback when CWebb went into sustained riff making fun of Derrick Rose. Rose got popped pretty good by a screen (I think by Maxiel) near the end of the Det/Chi game on Tuesday and was clearly in pain on the sidelines afterward - and he appeared to be crying.
So, Webber went into this prolonged sob fest, crying and sniffling and totally emasculating a pro athlete. (A pro athlete who, by the way, I would put good money on to beat CWebb down in a tussle). I thought he was pretty out of line there. And if he wants to get all "raw" and "real" with his commentary, maybe he should discuss how he looked like he wanted his mommy and his binky during every big spot in his career - so much so that Barkley and Jet used to call him out ("he just doesn't want the ball"). Sorry for the tangent.