I don't think there's much evidence if any at all that it provides more accuracy or understanding. First tier companies tend not to use "sprints" at all.

There's nothing to understand, the agile manifesto or worse the "scrum" pamphlet can be read on a lunch break. Somehow engineers who put ten-thousand hours into their craft need a layman agile helper to understand it?

Every sentence of your comment is factually incorrect or irrelevant. I'm not going to continue a conversation with someone who doesn't have an interest in facts.

What you might actually mean is that you are going to try to sell agile snake oil to someone who knows less. Try a middle manager without technical background? They tend to be more receptive.