Sorry for the late reply, I wanted to think through my response and then I got busy.

The Greens could publicly behave with humility. As I said, the claim that “they don’t show humility because it would hurt them politically” doesn’t hold up if the Greens are being “slandered” in the press for lacking humility.

And as for the HAAF, a few points:

1. The Australia Institute is broadly untrustworthy. They’re biased towards minor parties, or rather just anyone that’ll give them attention. They’re also closely tied to the now defunct Australian Democrats and those people would prefer if Labor was closer to the Liberals not just in practice but in ideology. Worst of all though, they’re a think-tank. Think-tanks are, quite honestly, full of idiots. Policy-area experts, like those in the construction industry or those that work in social services, they’re much more reliable than a bunch of upper-class consultants.
2. The HAAF was supported across the board by people who are directly engaged with vulnerable people, and they said it was especially critical that it be passed immediately. The delay was opposed by any organization that actually dealt with vulnerable people, and the resulting delay of 1-year resulted in less housing being built. Hell, considering the state of the Australian building industry I wonder if more housing would be built even if the Greens got all their demands after this delay.
3. The idea that it’d do nothing, that is absurd.

And on the double standard. The fact is the Greens would not be able to win elections without Labor. Labor could easily win elections without the Greens. You could argue that’s because the system is rigged and that the system should be changed, but we’re one of the best-performing democracies in the world. This isn’t America where voting is optional, elections in Australia are fought in the center and Labor are much more palatable to the average Australian than some inner-city tree huggers who have never worked a day in their life. Maybe an Adam Bandt dictatorship would make the country better, who knows, but I sure as hell wouldn’t bet on it.