I think it might be that they made the barbarian brutes look different for each continent. How could they make a Africa scenario without making the barbarians look like Africa natives for instance? The present brute unit got blond hair and is dressed in horned helmets and fur clothing. How silly is that looking in the African jungle? I would love if they made the continents more distinct from each other, with different resources and barbarians for starters, now its only the terrain that looks different. Then they could add the old option to have the civs start in their "right" continent, so that when you play China you will have Korea or Japan as your neighbor and find, silk, tea and rice close by, while if you play Incas you find gold and potatoes.