That seems... very suspicious. I doubt that the virus cares what the reason for a large gathering is. I don't think the BLM actions were using proper social distancing. But what does that leave? People who went haven't bothered to get tested since? Everybody wore masks, and that's way more effective than we thought? The gatherings were outside, and the Vitamin D is saving everyone?
There have been epi efforts to oversample people in the blm protests specifically to examine its impact on infection rates and find it didn't matter. They didn't have an explanation but suspected it had to do with the protests mostly being outdoors.
