Interesting that he's so in love with the kokyu where you go down on all fours and let uke fall over you (anybody got a name for that?). O-Sensei was fond of that technique too. It's instructive to compare the differences in how they do it.
I was calling that a version of suwari komi or sudori....though the versions of sudori I learned were with one knee down, not both. Call it sudori ryo kata hiza tsuki?