When I watched the videoclip I saw a strong similarity with techniques from Tomiki's Aikido Koryu no kata. It is said the koryu no kata is based upon techniques learned by Kenji Tomiki and Hideo Ohba at Ueshiba's dojo. Btw it seems KenJi Tomiki was involved in editing this book.
Just a thought,
I've spent a lot of time watching video of Ueshiba, Inoue, and Shirata, but I didn't think to look at the koru no kata from Tomiki. Even though that would make perfect sense. I'll check some of that out tonight.
There are lot's of things in these techniques that are a part of modern Aikido. But there are so interesting differences. They've been fun to work with.