Hey, 2-3 years ago, everything below 85 was mediocre and below 80 was crap. Now it seems that you can buy a 75 game without worrying about its quality. The problem is the inconsistency. New IP's and reboots seem to be more forgiven by reviewers than sequels, which is very odd imo. A game is a game and all games should be reviewd equally.
As for The Last Of Us, worried about what exactly? Do you think the game is less awesome after GoW lower scores than expected? This doesn't make sense...