I was worried about that too, it looks cool, makes the text hard to read because its distracting, and ultimately might result in a bunch of pages which get less useful.
IMO, it probably wouldn't be best to put this on a page with content is the main factor. This is sort of cool for branding/marketing and can have a big impact in that arena.
Then, perhaps, it shouldn't do so on its project page and instead link to a demo. I found it extremely distracting just reading the project web page at all, never mind all the sudden fan noise.
