Are these restrictions about the safety of people? Or simply a risk mitigation Strategy that is protecting strata from legal worries?
OK, there is no current NSW Health directive saying that strata pools and gyms should be closed. In my building, for instance, the pool and spa have been open for weeks, as have the gyms, albeit with restrictions on the numbers of people who can exercise at any one time, controlled by a booking system.
Perhaps your block lacks the management structures to be able to set up a system like that. Or maybe they just lack the imagination to come up with a workable plan.
Or maybe they are just taking the opportunity to save money. I would be telling the committee, the strata manager and your landlord or rental agent that you have paid for these facilities and there is no good reason for them being denied to you.
You want them open or you want a rent reduction. Simple as that.