That's because the game actual matters even if all of the hype is there for the game, although I think we all understand if a game gets hyped, since it's natural for a development company to try and boost a game's appeal.
But, some people take reviews so seriously that it's kind of funny. A review doesn't matter if people are only keeping track of "AAA" titles (a term I absolutely can't stand) or trying to justify their massive affinity for a system. An unbiased review, which is kind of hard to come by, should highlight the goods and bads of a game, so a potential buyer of the game can get an understanding of the game. Way too many reviews that I've seen are based off of maybe 1-2 hours of play, which is definitely not enough to get a clear understanding of the game, especially with RPGs and other games that may be 30+ hours in length.
