No the kata Kanazawa is demonstrating is not Nijushiho or its Okinawn precedent Nisheishi.
Here is Nijushiho by Kanazawa http://www.youtube.com/watch?v=cGV2aOPTC-w
or an older Shotokan performance here http://www.youtube.com/watch?v=4B2niRHnqQU
Just from watching there seem to be various styles of technique from Goju's Kurunufa as well as portions of various Crane forms. Logically I cannot say which came first, this form and then those forms or the reverse.
As regards the forms technical performance, please do not take this as a critique of Kanazawa Sensei. His performance for a gentleman of his age is outstanding.
But the performance of some of the technique series violates the standards I use, such as striking before the rear punch hits the ground. If I was using my basic technique performance standards, there is much that violates the performance I would wish to see.
On the other hand, there is a very old Okinawan tradition that public performance contain changes, and other innacuracies on purpose, so others couldn't grab your true intentions.
My basic assumption watching anything from a senior (Okianwan or Japanese) is not to assume what you're seeing it what they're really doing. It is after all just a minute or two of their time captured, and what their full intent is remains difficult to know.
BTW, this is also a very Chinese tradition that remains true to this day too.