Sorry you hit a stumbling block, but glad you got it flashed. This is very odd. Did you buy this from eBoy? They’re assembling their own Wi-Fi Adapters, so it’s possible they tried to test yours and forgot to erase it. In general, they should definitely not be claimed already.
In any case, you said, “The doc says to claim your new device.” I don’t think my docs say this…? As for the device being in the drop down list, I think the only reason this was confusing was due to the weird turkey name. (Which, yes, I agree is awesome.) That said, the manager definitely needs to be cleaned up and improved visually. I’m just not a web guru by any stretch (in 1996 I was pretty good!). If anyone wants to take a stab, I’d happily update the file.