Sure, I don't say that you couldn't rephrase without the embedded part and reach the same level of precision, just that one can't simply declare that the center

Sure, I don't say that you couldn't rephrase without the embedded part and reach the same level of precision, just that one can't simply declare that the center-embedded text had "no benefit". The added precision was a benefit over the proposed replacement, even if that precisions can be accomplished in other ways.