Depends on the target demographic.

If you're trying to engage people who enjoy watching lolcat videos every day, a video is probably the best medium to use.

But I suspect that the majority of the people who are likely to be interested in this topic (programmers, mathematicians, engineers, internet freedom activists) prefer to access the most information possible in the shortest time possible, accompanied by the least possible amount of unnecessary bytes, and in a format that allows quick skimming. Ergo, text.

wrt "Most don't", how do you know this? Is there a study or a poll you could point to? I'm genuinely curious about this.

This being said, some salient dot points could be put forward to summarise the videos and what they're about. As it stands, it's largely a mystery, and not an enticing one. There's no 'hook'.