You are right, every game review is going to be subjective and not objective. Enjoyment isn't really something which can be objectified as such they have to be subjective. Yes you can list game features in a sterile and objective way, but that's not what consumers are looking for.
What we as consumers can do is find a reviewer/editor who shares similar tastes than we do through games played and opinions shared. This will then give the consumer an idea on if he will like the game or not.
So yes there will be pointless reviews and editors you won't agree with out there. As such sites like Metacritic who collect allot of reviews and then average them provide more of a global overview how a game is perceived.