He's actually right, rotten tomatoes is getting rid of specifically the ratings on how much people want to view a movie because they felt it got brigaded by trolls too often and it doesn't really leave correct impressions either way
They got rid of the ability to rate your interest in seeing a movie because Brie Larson couldn't handle the fact that she has singlehandedly tanked her own film, and potentially Endgame depending on her character's role in it
Also it's his mindnumbingly handicapped representation of the situation. muh 4chan, muh misogyny, muh women superheroes, dumbass stuff