But it's not just about that. Sure, the individual who dares to speak up may get knocked around or worse by the police, but they ALSO then get knocked around or worse in public opinion.

So if I'm writing a manual about how to survive encounters with law enforcement, I'm not including anything much more than "shut up and obey". But if I'm commenting on the huge negative public reaction to someone speaking up? Fuck that - speaking up may not always be safe, but it's not wrong or objectionable.