

Fair use commentary generally requires as little of the actual original work to be used as possible. Summary may be ok, clips/recordings are ok, but they must be minimal. That commentary must also be substantive.
Reproducing a work in full (thus obviously limiting the commercial viability of the original work - another factor considered) with light commentary over the top probably wouldn’t hold up in court. The commentary just avoids automatic systems in the increasingly poorly moderated internet.
Technically both sides have almost identical policies in the upcoming election - only because the Liberals (who are conservative) copy pasted Labor’s policy in a pretty lame attempt to overcome their (rightfully earned) reputation as a threat to Medicare. That said, Labor introduced the rebate freeze back in 2013, so who knows.
The only party offering a real solution are the Greens, who (hopefully) might form a minority government with Labor like they did in 2010.