As an example, I could write an omake where Doof gives in to his worse impulses and builds an inator that mind controls everyone in the tri-state area into loving him because his deep seated issues prevent him from believing that anyone would care about him otherwise, culminating with Agent Russ returning only to be assigned to putting a bullet in Doof's brain because he's building a Flubber bomb to force the US to acknowledge him as a sovereign nation. It's something that could in theory happen if Doof went down that path, thematically it's entirely plausible, but even if I were the best writer in the world it still wouldn't and shouldn't be canonized because it's not the story either the QMs or the players are looking to tell here, especially not this far into the game.