Look the general rule around these parts is that any Bongo comic is a deceptively simple looking package that hides a formally inventive story made by through and through fans of the medium.
And that formula holds here. Not only is this a choose-your-own-adventure story, but you also get a Wally Wood homage on the first page! So each page flows into another, and it exists in this format because of course Grampa Simpson can't remember the story he was telling. Neat justification for the format.