Sometimes a non-negative review or middle of the road review will be scaled as a rotten. If it’s not a glowing review that entire system is flawed.
A lot of movies are going to hit that middle road from an excellent film to the worst movie ever made.
But the aggregate is being used to promote Fresh and Rotten. And they’ll be rotten film you’ll enjoy but the critics hated, and they’ll be 90% fresh films you see, you will absolutely loathe.
Cinema Score can also be misleading there are some atrociously bad films that get an A rating.
I suppose you can see critics as being the first influencers, before youtube personalities and social media stars. Or even in my day pop star idols, you were told what music to listen to, how to dress and so on. and it was all about corporate and capitalist ventures.
Make up your own mind, and have your own identity is a maxim.