There are some things I wondered about while reading the article:
1930? Didn't the Seiryoku Zen’yo Kokumin Taiiku came to be a few years earlier than that, as in 1924: http://judoinfo.com/seiryoku.htm ?
Also isn't it just "Seiryoku Zen’yo Kokumin Taiiku" instead of "Seiryoku Zen’yo Kokumin Taiiku no Kata"
(Here the official Kodokan page for comparison: http://kodokanjudoinstitute.org/en/waza/forms/ ) ?
In the original version of “The Complete Kano Jiu-Jitsu” (1905) there was included a complete chapter on atemi. It should be noted that is unclear how much of Kanō’s “Jiu-Jitsu” is actually represented by this work, ...
This has been answered long ago (by Kano himself): Nothing.
There's a lot of info about matters I lack knowledge about, but the problems listed above don't strengthen my trust in those parts.
How do you feel about the the sample video linked in the article? I am a layman when it comes to kata, but some things felt ... off, to put it carefully.