You think the Mac Mini, a product that accounts for a tiny sliver of all of Apple's revenue, rates a slot alongside a new rev of Apple's flagship computer?
Yes! It's the cheapest entry into owning a Mac at a time when people are looking to spend less money (e.g. netbooks).
Portables do almost double the amount of revenue as the whole desktop category for Apple; the Mini is accounted for alongside the Mac Pro and iMac lines --- either of which surely dwarf the Mini. However important you think it is, I don't think Apple thinks it's as important as the MBP, or the 3.3Bn iTMS, or even the 2.2Bn Apple software line.
It's not really a new revision, though, is it? It's just a different size of the newest revision that has been out for a while. On top of that, it's a "release" that has been assumed for months. It strikes me as a bug-fix release, instead of a major new release, if you will.