I can't really comment on the plans since DC's link is broken, but scheduling a gathering on July 4th is odd because they'll just get dissolved into the crowds

I can't really comment on the plans since DC's link is broken, but scheduling a gathering on July 4th is odd because they'll just get dissolved into the crowds who come for the fireworks. Maybe they're doing it earlier in the day, or hoping that the big crowds will see their message in passing.