I think it was suganuma-sensei who said, in a demonstration the element of performing techniques accurately is obvious, to this there is the added question of what it is you would like to express during the frame of time you have been given. For example, maybe you want to try to express strength or beauty or softness. A demonstration is a means of self-expression. Therefore the issue of what we would like to express in the demo is important.
Consistent words to this day with Suganuma.