Yes dragon man , no one disputes the A380 can get into Johannesburg , but the unanswered question of how much DPD Contingency Fuel will need to be loaded to travel across the Southern Ocean on the SYD-JNB leg has yet to be answered.
The other unanswered question is what Second segment limits , if any , will there be on payload for the 787 on the SCL-SYD leg.