There's a reason Germans left of center have a disdain for the police and it's obvious why that tends to escalate.
If you're okay with police officers injuring themselves while violently suppressing protestors being counted as "injured by protestors" you should also be fine with the police being held to the same standards. Somehow even if someone dies in police custody the investigations never amount to anything though, and the government is okay with that because the police investigated itself and said the police isn't doing anything wrong.