Stephen Conroy can't lose face
Yet by showing how ill conceived this was, you create a situation in which Conroy cannot back down. It would be admitting he screwed up and he cannot do that, nobody votes for a self confessed loser.
This filter should only ever have been for parents, to filter their children's internet feeds at their discretion. It was just a flip moment, when he decided without thinking it through, to extend it to everyone. Yes he's an idiot, but you need to give him a way out whilst saving some face, either that or his boss needs to step in and reshuffle the problem out of the way.