Having flown and taxied both tail wheel configs, I'll just say that SA was still in the ready room during that taxiing evolution.
For those of you ridiculing the aircrew, I'll offer a point of view for you: the maneuver from the front end caught the back end guy on the port side by surprise. Putting that another way, the guy in the back isn't expecting that move (the turn so soon) so it's not unusual to have that "surprise" effect cut into the fractions of a second that an ICS transmission "tail wheel clearance!" or "stop turn" can get through a pilot's ears and into his brain housing unit.