Thread:TheAnimatorCartoonistDude/@comment-28270713-20160910183127/@comment-28270713-20160912040504

They are not protagonists by definition. Sure, if a future episode is shown from one of the sisters' points of view rather than Lincoln's (highly unlikely, but still possible), they would be the protagonist of that episode only. There is no way for all of them to be protagonists simultaneously; it's just incorrect.