The NBA has nearly pulled off the improbable by successfully completing its season (playoffs included) without a single player or member of the league staff testing positive for the coronavirus in the bubble. They created a protocol and adhered to it while strictly disciplining those who broke the rules, and in doing so, laid out a template for how to play professional sports during a pandemic.
Most other sports haven’t followed that model, though, because playing in a bubble is hard. It requires families to sacrifice; it extracts a mental toll. That’s why no one expects the NBA to go through with this plan again, no matter how successful it happened to be.