no. because what that really shows is the guy that reviewed it then thought about it after whilst seeing other cores most likely and is trying to line it up more closely to the AVG of all other sites.
Personally it does not matter what score you give a game. You may be like the ONLY person who likes this game so why shoudl you score it low?
eg some of the Wii Sports Wii Resort etc.. alot of HARDCORE sites slam these, but you may find it addictive.
one example for me is Haze. I like the game alot. sure about 90% of gamers slammed it but hey it is personal taste.