Phone replacement mix up?

So reported my OG Atrix, because I dropped and it became unusable. Even though it wasn't its first drop. It had countless other drops. When the replacement phone came in I got the Atrix 2. I love the phone so far the screen is better. I do miss the finger print scanner and the lower internal memory, but I'm not a big downloader.

Now is it a mix up? Shouldn't I had received the OG Atrix instead of the second one? Or is it because once the Atrix 2 came out the OG Atrix got kicked out.