I went to a BLM protest about a week ago. Universal mask wearing there, and people were doing their best to distance as well. It's not that we "stopped talking about it"; it's that we didn't need to, because the rules were already being followed in that context.

One of the big reasons why the CDC was against recommending masks in the first place was that it would ultimately make people feel like they were taking reasonable precautions while engaging in risky behaviors, and result in a net increase in the R factor rather than a reduction. Lo and behold...