Yeah it’s pretty easy to understand that the 84 is the professional reviews. I guess there aren’t just 64 people who put a comment, but 6190 who put a comment (from the image in the post).
The more professional reviews come out the more the score has a chance to go down compared to the first reviews if they were very high. And give some sort of average.
However profesional review scores don’t always align to what most users think, as people like different things, but also the users get very much bothered by a bad start. While the reviewers will give a score on the entire game.
stopthatgirl7