Government is known for being too economical with the truth, as on the outer surface it's said to be all about protecting consumers but on the deeper perspective it might be regulations that's are weigh beyond just protecting consumers and maybe that's why some of these exchanges had to leave because the can't abide by the very regulations.
You made a valid point here because they definitely say that they are making these changes for the good of the consumers but from the inside, they are planning to make things more centralized and according to their own rules. I think, the Australian country has not had good trading volume, and crypto investors now, that now they are trying to up the game and they will make some good profits by fearing them out. I am not saying that they will release some (exchanges) by taking bribes.
All I am saying is that might increase the tax which was already implemented by them. But these small implementations are not random, instead, these are part of the domino effect. And planned by governments. Overall, they really did good and they will definitely step up in the field of crypto and more investors will come to their country.
Well, just to clarify, this topic was already shared by some users before:
https://bitcointalksearch.org/topic/m.63002518 by bitnote