It's not as bad as it could have been for them - and Rudd has probably done better than Gillard - but it is a landslide even on the lowest figures.
The thing is that a lot of disaffected Labor voters drift over to the Greens which when preferences are counted still end up as Labor votes. The Greens will probably still only get 10 -12% of the vote though. Labor’s Primary vote is pathetic but looks far better on the two party preferred basis. As the Bob Brown affect dies down I can see the Greens shifting back to the middle a bit in the future and becoming, for Labor, like the Nationals are for the Libs.