Sure, no doubt, a video can sometimes make things much clearer. A great example (to me) is this [1] for example. I had understood from the old illustrations that I was supposed to imagine something like that, but video makes it incredibly clear.
The actual net impact of screens in classrooms, however, appears to me to be extremely negative, and I think learning outcomes bear that out.
But there are absolutely numerous use cases where being able to display graphics on a screen (or even better interactively) is a massive benefit. Think of any sort of science that's better shown with animation than just a static image on a page for example.