Trying to give him the benefit of the doubt, this particular judge had his hands tied somewhat as Australian law currently states that sex CAN be changed, and that gender and sex are both equal and valid.
Obviously that's utter bollocks as sex is immutable but for some incomprehensible reason, Australian currently states the opposite.
I don't think the judge was particularly sympathetic to Giggle, but even if he had been, I'm not sure how much he could have done. AFAIK a judge at his level can't make a ruling because he dislikes a law personally - so if Australian law allows men to be women on equal terms, he basically had no choice but to rule that.
Sall knew this ruling was coming - it's the next legal arguments and appeals that will matter. Essentially this case needs to peak Australia to change/redefine its laws because this case proves that as it stands, no one of either sex can create a single sex space for any reason.