Actually, a lot of the shock and horror this article refers to isn't about the video game, it's about that disgusting trailer. Which has been removed, because some people actually don't think it's funny. Nor is it an accurate promo of the game, and would be a pretty gross promo tool, which is what the common assumption of it's purpose has been.

http://multiplayerblog.mtv.com/2008/04/30/ign-yanks-gta-iv-sex-and-hooker-shooting-video/

Jack Thompson on the other hand can stop trying to censor people thankyouverymuch.