I think this is true.
But I don't think it's true of Recore. Game looks rough, and low scores for it aren't very far from the mean. The 90/100 review from "Game Over Online" is further from the mean (63) than the 40 overall from Destructoid.
I think we have a problem with game review sites when reviewers can only look at a game from their specific point of view. Like, if you didn't like GTAIV or GTA:SA, you're probably not going to like GTAV. So, when a reviewer goes into GTAV already not liking the game, and then their complaints are that it's not like _insert favorite game_ so therefor, the game deserves a 55/100, then that's disingenuous. If you compare it to something like car ratings, somebody who exclusively drives zippy sports cars or performance coups isn't going to be able to rate a mini van on the same scale. If they do a review of a mini van, they should say, "Well, this van is probably more apt for someone with a family, and compared to other minivans, it's pretty good." But if they said, "Ugh, the handling is atrocious, I can't park in narrow spaces, and it goes 0 - 60 in 9 seconds... 20/100," then it'd be unfair.
A problem is that we've built up review scores to be the end all be all. Even for a forum of enthusiasts where we all recognize we have different tastes, we can't help becoming fanboys and rooting for our favorite games, brands, or equipment makers. This has created an industry where developers are paid based on arbitrary averages. It's rotten.
It's a rotten industry, though. That Naughty Dog 80-hour-workweek thread is good enough example of it. What's the point in destroying your life, for measly pay, just to get an arbitrary review score up where some other person is going to shit on it because they don't like monster closets?