Variety got a lot of flak for their Metroid Prime 3 review because it was written from a mainstream perspective. They pointed out to their average mainstream audience that Metroid probably isn't the Wii game for them if they don't know "the rules" of a Metroid game -- just think of trying to teach a non-gamer how to play Metroid compared to Wii Sports. In the case of The Simpsons Game, Variety goes and recommends an average game because they believe the writing could sustain their mainstreamer through the experience. While we frequently put gameplay above story, Variety and more mainstream pubs might see things reversed. It may not be all that simple, but it's plain to see that reviews can be influenced by the audiences they're written for.