Jetstar is successful because they have a large share (well now monopoly) of the low cost market across the domestic network, with many routes that not even Virgin will attempt. They also have some serious frequency on many leisure routes. The brand also has a higher percentage of brand awareness in the industry segment compared to Virgin.
Rex also is a brand that not many people would be aware of. They don’t even have a Facebook page, and I assume they don’t even have a marketing department. You don’t think Rex when you want to fly to Sydney just like corporates never considered Tiger for any routes. It doesn’t even pass your mind, you just book with QF or VA.
Sharpie seems very confident. Perhaps he sees something we don’t.