Aren't we understating the role of labels in brevity here?
Where the labelled thing is understood well enough by the labeller and listener or of trivial importance to the problem domain, don't labels contribute to cognitive economy?
I'd have said when you need to get things done, fear of wasting time is desirable rather than deadly.
I've always felt that constraining yourself to poetry that rhymes restricts both what you can say and the artfulness with which you can say it.