Dave Meltzer is one guy, sharing his own opinions and his own biases that are treated as gospel. Rotten Tomatoes provides access to 20 plus reviews for each movies, some from respected film critics at major publications, some from random random bloggers. If a consensus of the reviews are positive, the film is certified fresh, if a consensus of the reviews are negative the film, its certified rotten. In wrestling there is no consensus, its just Meltzer. With movies if you think the guy who reviews for one publication is an ass, you read the reviews from another publication. There isn't that in wrestling because there isn't anybody who does what Meltzer does on the same scale, so we are kinda stuck with the guy for better or worse.
Dave is like whoever happens to be the drama critic for the New York Times. No single film critic has a fraction of the power the NYT theater critic has over Broadway, not even since the days of Pauline Kael etc.