The getting out of the way, staying out of the way was a play on your post Flow alone at least gets you out of harms way.. All in good fun of course. Taisabaki and also ma ai are of course more complicated than that.
Fluidity comes from understanding and practicing kata, the kata itself derive from basic principles which I listed. I do not consider flow to be a basic principle just as I don't consider taisabaki to be another word for flow.
Of course we may be just splitting definitional hairs or more probably be talking from two very different approaches to Aikdo.
I have trained in Aikido for a number of years and also teach.
Several people know my background and although not extensive they may understand where these differences originate.