I've read it a couple times and it's still stupid.
The commercial is from South Africa, a majority black African nation and is clearly aimed at black Africans. Why would they use a white woman or any white person for that purpose. Also, as many have said, the commercial is spoofing something that happened at the World Cup. How exactly would they have accomplished that with a white woman? Lastly, how does an African country not using a white person in a commercial prove that a certain stereotype exists in that country?