Prequel Trilogy: Boring backstory
Sequel Trilogy: Eager Remix
You’re in fact describing the same thing I am. The pulp of backstory and its layered but conscious mythos is dragged down by its mundane execution; substance, without motivation to be engaged. “Remix” describes re-purposing something that already existed without contributing the bulk of the whole, i.e. “lacking substance” while supplying fresh stimulation. Keeping the audience engaged although not providing much to be engaged over.