Some of his designs look ridiculous, but I don't see why the Kotaku article had to say that about the artist.
His art and characters are varied, with some being overly exaggerated. Not everything has to be photo realistic. Although the guy certainly likes boobs, I'm not going to fault him for that.
George's reply, well that was a jokey and juvenile response.
Edit: For the record, I'm female and I don't like the sorceress design. But I'm not upset or disliking the art/art style in general, because the game obviously isn't just all giant boobs.