Many people start of a presentation design project with "we want a presentation like Apple". A great intention. But after you come back with a first version (black background, a few words per slide, no bullets, no agenda pages, no summaries, no logo, no page numbers), people feel that it looks too dark, the flow is not clear, they want to summarise upfront what they are going to say, it is hard to refer to pages, it needs some branding, and to make sure that a certain point comes across, you better spell it out word for word on the slide.
Image by Danny Lion