Respectfully, you don’t know what you’re talking about here. Everyday, hundreds of thousands of law enforcement officers across North America go to work and ruin the days and lives of many dodgy assholes without covering their face, with their names plastered on their vests and their badge numbers memorized for when asked. Few are worried about “doxxing” if they are doing their job properly. One of the hallmarks of a free and open society is that law enforcement don’t hide their identities when doing their work. In most jurisdictions, law enforcement can’t hide their identities for fear of doxxing.
Judging by what I’ve seen, these goons (and yes, based on their actions, lack of training and professionalism, these guys are goons) are hiding their identities because their actions would lead to disciplinary actions at best if they were real cops in normal times.