That's right. My first unit was defective. I still have it, but it's packed and waiting for a return (when I get a new unit).
My order was made via the Apple Store for Business. I've spoken to a lot of Apple consultants on this. None of them confirmed that I would have a higher priority than other orders (there is no guarantee), but I asked one person what her experience was in similar cases, and I received a reply she usually sees that Apple is trying to speed up delivery of replacement units if the customer received a defective product. As far as I know, my replacement order also received a note about priority. It is true that I hoped that I would get the replacement much faster, but two weeks are still better than nothing.