I think the counter view here is that video can be incredibly inconvenient depending on your exact use case. E.g. my scarcest resource is time and video is, for me at least, a very slow way of consuming content (compared to text). So if it's content that I need to consume quickly, video is a none starter.

If I'm browsing the web, I'm already reading textual content so reading is about as low effort as can be. Watching a video means "context switching", reading to watching, along with making sure I've got headphones on, pausing any music I'm listening to etc.

That's not to say the above is true for everyone, but for some people, watching a video is substantially less convenient and entails more effort than reading text.