I've seen basically identical procedural animation in a video by argonaut on youtube. It's really cool, I've even messed with it myself (on github). I liked the narration, it was very atonburg-like. There were a few stages in the middle where there was no narrator though, which made them feel kind of empty.
I also would've liked mouse controls, I don't see any real reason to need to use the keyboard for such simple controls.