Forced pace is a huge problem for videos. If you encounter a paragraph that you already know all about in an article, you can skip it. If you encounter a section of a video like that, it's harder to skip so I'll end up trying to sit through it, getting bored, then distracted, and then who knows what I'll miss.

The 'killer feature' of writing is the ability to self-pace. To me that makes them orders of magnitude more effective as a means of communicating ideas.