Your last statement is not correct. Many of the works of literature regarded as the best do that very heavily. Dante does that like crazy in the inferno. Joyce does it non stop in Ulyesses. Most of the works of Vladimir Nabokov do it very heavily. As does Pynchon. It may be that you just don't notice it in literature and do notice it here because you are more familiar the the animie canon than the literary canon.