Blaming the tool for poor/lazy use of it is a cheap and easy attack.
At the end of the day PowerPoint is nothing special, it's just that many people start preparing a topic/subject by making bullet lists. If you're lazy, your job is done: you copy 1to1 that list into a sequence of slides and call it a day.
If you're slightly less lazy, you might look for images/graphs/content from somewhere else to support your presentation.
Everything changes when you regard the slides as being 100% for the audience and not for you, the speaker. That's when you start thinking about the UX of that, putting yourself into the shoe of who's forced to sit through what you're trying to deliver.
But again, blaming the tool is easy and doesn't address the root cause: many people who give presentations, either don't want to give them (someone might have told them that they must) or they do it purely for themselves (or don't really care about the audience).