To be fair, Frontier used to have the Arctic labelled as its own continent. This would explain why it got its own DLC pack. With Oceania, that supersedes Australia as a continent name-wise. But Australia was chosen as the more marketable name for the "Oceania Pack".The Arctic has been covered three times: the Arctic pack, the Europe pack and the North America animal pack. I don't really see any problems in having several packs focusing totally or partly in a region that has been covered before if the name is different enough to avoid confusion. If you want the Arctic fox, you buy the North America animal pack and that doesn't imply that the fox is not an Arctic animal. Same applies to the lynx with the Europe pack.