Secondly and more relevantly I wanted to address some points and how I feel they apply to music reviews. When I've reviewed albums (so far only NSEHG and Maxi Curnow's STEM but more coming soon) I haven't given them a numerical grade and despite that I actually prefer games to get a numerical grade so to that degree I may seem to disagree with the video but it's a bit more complex.
On one hand what he says about games being an individual experience for each player (or group of players) that they can then share as war stories of sorts while films and music are static experiences that are the same for everyone is true up to a degree but that's not telling the whole truth. When listening to music or watching a film how you perceive it is affected by what you've experienced in your own life. If the subject matter speaks to you then it's going to have a bigger impact than if it doesn't, if you're familiar with a genre that's commonly recognized to be more difficult to get into it's going to change how you feel about it. Of course the same is true for video games but that doesn't change the fact that each person's point of view brings us to the fact that reviews will always be one reviewer's thoughts and opinions but that doesn't mean they are useless.
He mentions that games are reviewed based on technical aspects which are, of course, important because while great games don't always have great presentation they've got to be functional.
In this way a numerical grade for a video game can tell you what you need to know. If the game is in a genre you love and it gets top grades for everything except how fun it is, check if the reviewer actually likes the genre, if not give it a shot. If it loses points for things that don't bother you, same story. The same thing applies to music; do you like shred? Then "wanky" probably isn't going to turn you off an album.
When you follow a specific blog or Youtube reviewer you will start to notice a pattern, how that reviewer describes things and what ticks his boxes. This way, even if you disagree, the review can help you get a feel for whether or not it's worth checking out.
Hopefully my "pattern" can help some of you get into some great music and help great music find a good home.