I'm not saying there aren't genuinely bad gaming journalists and even entire review sites out there. But the main problem I have with the vast majority of criticism towards them is that it tends to boil down to "they gave a bad score to my favorite new game, so they're not good reviewers!"
Good grief, reviews are based more or less on opinion, regardless of what hard facts are involved (mechanics, controls, gameplay, etc). A reviewer's opinion of a particular game (or even whole collection of games) differing from yours isn't basis for them being a shitty reviewer (much less the whole site being shitty, just because of that one reviewer).