Interesting, but of any importance ??
Yes, I think it could be.
Buying a new rifle, I'd expect it to be clean for the simple reason that it could rust if it stands too long.
Or a prospective buyer could think the personnel have been abusing the rifles for private fun.
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Ya, I thought of the rust factor, but other than that ? I did not mean sarcasm, but a really like is it important, a error, flaw or some disadvantage attached. I am sure the decision to ship like described had much research and decision making attached to end result.
Perhaps - " there! Proof it was test fired as per sales schlep story"