Flock made the matches (Flock mass surveillance system) and let children (the police) play with them. The result is that citizens get burned.

I don't think ANPR systems should be held responsible for matching number-plates or car models. That's their job, and police have had access to such tools for many many years. It seems relatively clear that Flock was providing a commonplace technology here, that was misused.

If the police are children then that's the real problem.