It's ok Bagso. Appreciate your drawing attention to the article.
Yes, Perth and Sydney were both listed weren't they.
I rather think J'burg via Dubai may be a slightly circuitous route taking quite a bit longer than some of the alternatives but I could be wrong. With some destinations, connecting times, total flying time and available airline options as well as price can all play a part in deciding whether to use EK (and points, air miles and other incentive schemes I guess)