Yes, the system is broken even before we get to Flock (or whatever tech) but Flock makes it worse. If a bad tool is badly used to cause harm, it’s fair to criticise its existence. You can’t fix police abuse with a snap of the finger, so you need to start but taking away the tools which facilitate it.
If it were your ass which had been thrown in solitary, would you be pleading with your lawyer to “go easy on Flock. Sure, they allowed a major disruption and trauma into my life, but they’re just a tool”?