Looking at the clip above of the new airport, I'm amazed at the shots inside the terminal building, which would be something for a smaller European or US city. The elegant car parking area outside and looping access roads seem extraordinary for something planned around one scheduled 737 a week, plus maybe some extras as time goes on. There are plenty of lesser airports around Europe that still manage with gravel car parking areas. Certainly seems like some architect, paid on a % of construction cost, had the Dept of Overseas development in Whitehall by the balls.
I never understood why the construction project didn't build just the runway first, and get that going to assist with the logistics of doing the remainder, if only for moving in/out the South African construction personnel by Hercules, when any aviation issues would have become apparent before the expense of the landside facilities. That for example is how you do a major construction project in the outback of Australia - airstrip first, then use it to help build all the rest. But it looks like they did the runway last, the terminal building all polished and complete, but the dust kicked up by the landing aircraft looked like they hadn't even hosed down the runway yet after completion.