I have become profoundly convinced over the last 15 years that words (& to an extent, text), is the generally best mode of communication of meaning, beating out things such as video, images, smells, etc. But I've been generally unable to articulate that idea cleanly and persuasively.
What about music, sounds?
[1] As I suspect most people spending much time on this site do as they aren't here for the pictures.
[2] Actually video editing software does give mechanisms for rapidly scanning the video so perhaps it is possible but not offered in web video software that I have seen.
I have some sympathy for your point, but I don't think the argument about video is valid. 99% of the web is crap. Always has been. Probably always will be. The crap includes text, video, etc., etc. That's why we have search engines and sites like HN -- to help us find the 1%. The existence of the other crappy 99% says pretty much nothing about the relative advantages of text vs. video.
I have occasionally seen beautiful video on the web. I have much more frequently seen video whose author had deluded himself into thinking it was beautiful.
http://lists.canonical.org/pipermail/kragen-tol/2013-June/00... talks some about the relative usefulness of different kinds of digital media.