It sounds like the planning & development process has been a real mess. This being NSW (finest politicians that money can buy), it's not entirely surprising.
But it's not entirely clear to me why the wind farm is a problem to aviation. I get that it is only a couple of miles from Crookwell airfield (hard to tell exactly from my WAC), but why can aircraft not join & depart the circuit safely? Do the turbines extend more than 500' above the ridge lines?