Yes, to an extent. You need to be objective if you're stuck reviewing a genre you don't particularly like (Gamespot is notably horrible with this), OR if you're the guy in the office super hyped for a game you can't let that cloud your judgement (like GR did with Alien Isolation and many other games). BUT, you have to know when to be subjective and announce your subjectivity. The best reviewers make sure to note that "if you like X" you'll appreciate this game or what have you, and the worst (most of them) just talk as if they're being objective.
This issue is also why I try to do post-hype plays (in the case of TLoU I avoided everything like the plague for a full year to be fair and not get swept up in hype - needless to say people don't like my opinion of that game).
You should check out my YouTube channel, The Golden Bolt! I review all types of video games, both classic and modern, and I also give short flyover reviews of the free games each month on PlayStation Plus to tell you if they're worth downloading. After all, the games may be free, but your time is valuable!
