South Africa did against relatively weaker Indian and Australian attacks. Doing it against this Australian bowling unit in the fourth innings is practically impossible. They have all the basis covered.
Our so-called run chase at Brisbane meant nothing. The match was over long before Shafiq and the tail-enders decided had a go at the target under no pressure; they were not expected to win and played with freedom, and the Australian bowlers had relaxed as well.
However, as soon as they got close to the target, they predictably choked. It is was very similar to India scoring 300+ at the Oval last summer. The match was over before Rahul and Pant started swinging, and as soon as they were under some pressure, they failed. Had the target been less than 200, they would have still lost.
It is not surprising to get close when the target is so big. Once the pressure of winning is off, players tend to play with more freedom. However, it these sub 250 totals that clutter the minds of the batsmen.
Furthermore, our 350+ chase in Sri Lanka in 2015 meant nothing. The pitch became a road from day four onwards. It was as flat a day five pitch as you can get. Also, Sri Lanka were playing with a rookie spinner.
The fact that Masood of all people scored a hundred in the fourth innings says everything that needs to be said about the conditions and the quality of the attack.