DramaTeach said: "How does this work? They’re still getting paid, right? I mean, it’s not their fault that someone else gets sick and forces a cancellation. Or do shows say that because they’re not working, they’re not paid?"
NY's sick leave law was amended to include Covid-related absences. I didn't see a carve-out for contract employees, so unless it was addressed in the agreements between the League and all relevant unions, they are likely required to provide pay for any mandatory quarantine period.
As for performance cancellations, that would likely be similarly addressed in those agreements. However, usually the only reasons for non-payment in those general work contracts would be either an act of God, weather, or riots.