I think they are just trying to make all the kite spots on batany as dangerous as possible.
Look at kite beach (metal fence and rock walls every 50m), they lock the gate at kurnell (making it harder to reach the cold beers in the ute while kiting) and now we have some metal stakes in the sand at dolls so when you get rag dolled on the sand you actually get hurt.
Once theres a few injuries they can ban the sport (for our own good)and everyone is happy.