Personally I haven't played the games and thus won't be able to verify the score. However, I think it is a pretty good sign that GS is capable of giving bad scores. It show that they value honesty over their relations with the publisher.
One thing I do know is that if I read the Army of Two review before I pre-order the game, I would have definitely skip the game, and be glad that I did. A score is a score, the actual review is more important :-)