Nope... it can do more. That video only scratches the surface. You can combine different aniblocks, stretch them out, shorten them, make your own with the other plug-ins, keyframing, even importing BVH files. You can export BVH as well if you want to tweak more in another program like Poser. I'm happy to see that someone made a video showing the creation of a "more typical" animation as most of the demos are dancing.

Here's their page with more tutes:

http://www.aniblockparty.com/vids/index.html

It's a simple way to create animations and save them for re-use to apply to other characters. It looks like, with a little experimenting and practice, some pretty complex animations are possible.

Kevin