What the f*ck do either of those examples have to do with the effectiveness of masks? But fine, I’ll bite.
Its really not that hard. The players stay spread out on the bench for optics. Managing those optics helps keep things like basketball going. It’s a token gesture that indicates that they acknowledge the pandemic. And it has virtually no impact on the game so f*ck it.
The combination of social distancing and masks is an effective combo. When you walk to your table you pass other people’s tables. Once you’re seated, there are usually not other tables within 6-8 feet. Unless you go to some redneck shithole where they think COVID is a liberal plot to take control of the populace by making them wear masks.