I don't understand how Australia weather is supposed to be a big attraction for A-League players. If I was a professional footballer I would much prefer to live in Wellington where the climate over summer is far more suitable for playing football in than Brisbane or Perth or Sydney. At least half your games are going to be played in reasonable temperatures, guaranteed.
It's just more enjoyable to get out of bed June-October when it's 20 degrees C, and the sun is shining on your face.