I pretty much agree with all of this.
My pushback on the idea of static technique is because, except at very high levels, static situations make it very easy for uke (consciously or unconciously) to subvert the goal of the training. Uke doesn't try to control the center, they just stand there. Or they adjust every time nage starts to get them moving.
This is similar to the situation when uke jumps into a highfall for no good reason in "dynamic" training. In both cases the partners are denied the opportunity to learn anything. Needles to say that this is not
how, what we call kihon training, works.