I really don't see why it is so horrible for them to air an Uncut version of the show. Airing something with an MA15+ rating late nights on GO once a week is not going to be upsetting anybody nor does it have to damage the "family friendly" brand. Parents who would complain about that are simply bad parents who have nobody to blame but themselves. As has been mentioned, channel 9 air much worse things in much earlier timeslots.
Remember that Channel 10 did bring back some semblance of Adults Only content in 2008 with Big Mouth - of course it wasn't the same as Uncut, but it was something and it did go to air without much drama. They listened to the requests for FNL and for a more diverse cast, yet they continue to ignore everything else.
And apparently BB: Confidential is back again this year. I have no idea why - it was panned by even the most loyal of BB fans. Cancel it and give us Uncut. If they really want to test how far they can take Big Brother, then it's something they need to take a chance on.