Also anyone with a little cynicism who watches movies is probably not shocked by this.
There has been a lot of positive review inflation over time and there are other tricks like having a score for 'critics' and a separate score for 'top critics'.
Then there is question of if the review they post was actually positive or not. There are plenty of ways to bend and play games with their system and the seem to do it. Just like yelp 'does not delete bad reviews' if you pay them, they just get relegated to a hard to find page and not counted.