The fact that NSW government website mentioned that Massage parlours is still on the closed list should be very clear.
The problem is association like MMA put out notice like this. Makes desperate shop owners risk opening in this kid of time.
So lets just say what is on MMA's web site apply to RNT (which I don't think it does). You are going to work then you are ok, that covers the owners and the girls.
Then the Public Health Act is what going to burn the customer. You can go to the ones around your home. Or the ones close to your work. Travel too far out from you primary resident you will be fine.