I have an opinion about the narrative relevance of the alternian trolls and I'd like you to correct me if I'm wrong or misled: I see Karkat, Vriska, Terezi and Kanaya as the four main trolls to the story. Tavros, Gamzee, Aradia and Sollux also hold some importance but not much spotlight. Eridan, Feferi, Nepeta and Equius had their moments but are overall useless and unconsequential to the plot. Tell me, it is a misconception of my part?

No, it’s not a misconception. It’s because they’re the patron trolls of Jade, John, Dave, and Rose respectively.