we are in a time where you plug your computer into a projector. your computer can display anything you want, but I believe most people would still show PowerPoint for a presentation. yes there's a lot of bad presentations out there, there's patterns that make your ppt bad. but that doesn't mean PowerPoint is a bad tool, I think that really just highlights giving a presentation is difficult. PowerPoint may make it seem easy because you can make them fast but making a good one is still difficult
lots of websites suck but we don't blame the web
lots of apps suck but we don't blame the platform