The ABC News article is most certainly centred around just the effect on Jetstar, and it's not an aviation technical report, and it ignores all the other affected airlines. Jetstar are most affected because they own around 90 A320's - but only 34 of the Jetstar A320's are affected by the recall.
Virgin only own 4 A320's affected by the recall, and were able to work around those aircraft being pulled from operations for the software revamp. Qantas are not affected, as none of their aircraft are covered by the recall.