I was kind of skeptical to watch a video with content I had already seen as a TED talk and nearly clicked back before it started. Once it started, I was immediately engaged, and reading parts of the talk satisfied a certain part of my brain.
Surely there's some aspect that is norm versus unique, but that's not what kept me watching it to the very end. If that's all it was, I would have stopped watching halfway through (as the uniqueness wore off).
No-- instead, the presentation style held my attention the entire time. And this is for a talk that I had already heard previously. It was stronger than one of those unfortunately placed TVs at a restaurant playing something colorful, this drew my attention and held it even though I would have typically moved on much sooner.
Perhaps no one else had the same reaction to it as I did, but I don't think I'd easily tire of lectures being presented with this kind of quality. Just my $.02.
This presentation is more compelling to me than a traditional lecture in many ways; its novelty really plays a fairly minor role in the difference. (YMMV, of course, but don't put words in my [or the GP's] mouth.)