A review score tells me nothing about a game, other than the reviewer's final opinion. The essay fleshes out why they enjoyed it, or not; this is highly informative for my own choices, as it breaks down gameplay, story, positives contra negatives, etc. A quick look tells me if they are enjoying the first few hours of a game, as that is usually the point where us, the audience, get to see the GB crew play through a chunk of gameplay, along with commentary. That still is not a final, nuanced opinion that has been mulled over for more than a few hours.
A thoughtful review is still essential, in my mind.