Most routine corporate stuff is basically a document in presentation form which a lot of people seem to prefer these days. Yes, you may give a 30 minute "presentation" using the "slides" but it's not really a presentation which I think is fine. I don't really disagree with your basic point. The sort of thing presented at larger team meetings I attended latterly tended to FYI sort of stuff, some of which was vaguely useful to know and some of which wasn't.