Any bets that every person in that gathering had their faces scanned, matched up with their driver licenses/passports/CHL with facial recognition software and got entered into a database of potential "insurrectionists" and ESG scoring database for the rollout of the CBDC?
I'd also be willing to bet that that crowd would be twice the size save for people being aware of that fact. Even if you park away from there, your license plate was scanned. If you took public transportation your face, credit card, token, pass was scanned to put you in proximity to the gathering. Hell, your cellphone, the big tell if you didn't put it in a Faraday pouch. Your carrier will put you there ala J6 geofencing.