Not being a Shotokan practitioner I have no idea of what it is about. As you are obviously more informed about kata than most of us perhaps you could give us your opinion.
But first a question. What has kihon kata got to do with what I posted? If you were really interested why did you not post some advanced bunkai demonstrating a real situation so we could actually discuss the value of the technique? You do understand kihon?
Here is some simple bunkai that gives a basic understanding of the techniques in the kata.
Now to my understanding, the Heian series of kata were instructional kata, not necessarily designed as a fighting system. The bunkai shown here is not realistic in that it is choreographed but that doesn't take away from its primary purpose, giving a simple explanation of the kata, but again kihon.
So, are there realistic applications with the kata that you posted? Certainly.
And another, this time talking about the angles shown in the kata and you can see the long stances being used in the take downs.