School text books and many business documents are written with the content creator in mind. Organized in sections, a clear structure nicely summarized in a detailed content page (or a PowerPoint agenda tracker). We make a point, provide supporting arguments, repeat the point, go back to the tracker page, open the next section, repeat. Perfectly organized, perfect logic. Studying equals forcing your brain to memorize a sequence of bullet points against its will. ("Hey, the first letters of each point make the word A-P-P-L-E when I swap the last 2 bullets!")
Stories are sequential, they are not designed to reference back to later by jumping to section 3. Stories have no tracker pages. Stories arrange their points in such a way that they are most interesting and memorable, maybe the most important message does not come first. Stories use analogies.
I am not advocating to abandon all structure in presentations. But still, have that school text book in mind when designing your next series of slides. Maybe your 30 minute presentation should be a story, maybe your 200 page final document should be a text book.