I have been watching these forums for many years, and have seen your comments.
as I have previously stated, there are plenty of fans for clubs in Sydney, that don’t travel.
Having team sharing home grounds or facilities away from their own territories, making teams travel to stadiums outside the area, would lose fans, which would have an effect on sponsorships, which means less funds available for clubs.
I see where you are trying to go with it; however you have tunnel vision on this point, and Miss the big picture. Fans = $$
The big $$ for the game is coming from NSW, more to the point, sydney.
it would be a step backward, forcing teams to play the same facilities.
Bulldogs want to go back to belmore, and it is more common sense for tigers to move out to a good facility on Campbelltown, where the play at least one game a year at liechardt.
Dragons would move to the gong, and have the one game at Kogarah.
both Kogarah and liechardt are now heavily surrounded by housing, and would be extremely difficult to develop further with infrastructure restrictions.
Sharks will be staying shark park and have the capability and capacity for extra improvements to stadium to ensure it is a niche stadium capable of a 18-20k.
Wollongong is pretty new still, though had some issues being extremely close to the shore line.
Penrith and Campbelltown, likewise to manly that require a refurb.