That police officers just don't get successfully prosecuted for this because of qualified immunity: that should be the big takeaway here.
Flock is just the whipping boy of the hour.
It's possible the next company will be similarly incompetent, but after having Flock tarred and feathered, they'll probably do a better job of it.
But even if you DID have clear evidence of misconduct and leadership is willing to push it, and the police union is willing to push it, it doesn’t matter. The prosecutors won’t prosecute, they have a symbiotic relationship with the police.
And even if they did prosecute, it still doesn’t matter. The judge and jury will go easy on the cops.