Of course they aren't inherently bad. Powerpoint is a tool. There are good ways and bad ways to use it. It's easier to use Powerpoint ineffectively than with other mediums.
I disagree. It's easier to be a bad speaker than it is to make a bad power point. Even thus you can make both bad, speaking is a LOT harder.
I don't know about that. I've seen a lot more bad power points than bad speakers. In my experience truly good power points and truly bad speakers are both rather rare.