Or, movie studios have exaggerated the impact of (real, but not very numerous) internet trolls to protect their own egos from valid criticisms. The third Star Wars trilogy was an incoherent mess. And for reasons I still don't understand, the end of Black Panther was released in a rough half-rendered state. But the people making these films don't want to hear criticism of their baby, so online critics get dehumanized as "trolls". Rare instances of real trolling from the likes of 4chan get highlighted and blown out of proportion as a defense mechanism.