Filtering? I'm not sure where you guys have gotten the idea that the filter has been implemented, it hasn't...it's only been mentioned and is being trialed.
It's been a huge PR disaster for the government as you can imagine, and they are looking for a way out without losing the support of some of their right wing allies.
The local news reports here seem to think that they will be dropping this issue and will use the new Fibre network to gain the support of their right wing allies in the Senate.
Anyway this is a big step for Australia, and there's no way it would have been done by a private company as the returns would have to be ridiculously low to provide affordable internet for the general public.