I'm sure everyone just wants to see some sort of AWs team play. Doubly better if against the big brother, even if watered down A League selections.
However another obstacle is the AWs coaching staff (except Rory Falloon?) are mostly based in NZ. Big ask for them to go to Oz for what, is likely 3-4 days max contact time with the players, plus 1 game - then return to NZ for 2 weeks hotel MI.
Largish sacrifice for seemingly not great reward, esp given some of the players they would be working with, may hardly be used again beyond the March 2021 window - post which the AWs should be getting closer to full strength with each new window.
Of course there is an ex NZF coaching employee now at Melbourne City. Maybe he could fill Hay's shoes for a one off game in Oz!