We would have the same opposite problem if the games were reviewed by people who don't necessarily like the game; have poor reviews which doesn't give justice to the game.
The main point I like to think about reviews is that they are there to push someone to actually try old games even tough the majority of "normal" gamers would not usually try because they think old games automatically are crappy obsolete games. In fact, old games are usually better than new games, so by going the high review way I hope we can bring some new gamers to some common sense and not discard old games on sight because of already made hard thinking.
If you want an example of what I am saying, you could always read
my review on ADOM.