We (Australia) have no enforceable privacy legislation. The choice to single out Meta is probably political, though could also be about scale, and being a huge foreign company with deep pockets.
>[...]personal information of some Australian Facebook users was disclosed to the This is Your Digital Life app in breach of the Privacy Act 1988 (Cth). The information was exposed to the risk of disclosure to Cambridge Analytica and other third parties, and risked being used for political profiling purposes. [...]
The relevant law had been in force for two decades before facebook ever became relevant.
The relevant law had been in force for two decades before facebook ever became relevant.