No double standard, Hammer. If you cannot see the difference between painting a group of violent conspirators, terrorists, caught on the act and your bad cop versus all cops analogy, then I doubt there's much use in debating the finer points.
Folks whose preparation involved procuring bullhorns, signs, and the exchange of ideas of how to best express themselves should be outraged at the problem, namely "those people" whose preparation involved procuring weapons, caltrops, chains, marbles, rocks, sling shots, chemical and biological agents, bomb making materials, etc and the exchange of ideas of how to best kidnap, fire bomb, commit aggravated assault, vandalize (to put it mildly), etc and deprive people of their First Amendment rights.
Maybe you can sway me, though...
Given the failure of "circa Seattle 1999 tactics," and the destruction and lawlessness that ensued, why should local, state, and federal law enforcement be restricted to using them?
Or if that's not what you are advocating... what would you have them do?