> Videos allow you to ... provide animated evidence.

If you want to do that, far better to embed animations in a mostly-textual doc.

> Life itself is presented to our brains in a dynamic audio-visual format ... does that encourage the suspension of critical thinking?

Yes, to an extent. Or at least text allows critical thinking more easily than the average conversation does. Text makes it really easy to pause and think for a moment before reading on. Or to check back on something you vaguely remember reading beforehand. It's a more active form of ingest than watching a video. Video-makers have many more techniques at their disposal to slip their narrative past critical filters, such as varying the speed of delivery, or using music to invoke emotional reactions.