The problem is that these system are setup specifically to be able to be used
incorrectly. Flock is getting all the rage right now but they aren't the only vendor. An acquisition and rename later and everyone will have forgotten this all. Police (others?) are setting up stingrays. Stalin's secret police had a maxim: "Show me the man, and I'll find you the crime." Remember, everyone who installed a Ring doorbell camera
paid to help set up these kinds of networks. (all so that a porch pirate might get caught even though Amazon will reship for free). These systems also set up a huge target for bad actors to hack outside of the law.
If these things were only ever used with the a valid search warrant, that would be a great step forward. But even that will only stop "honest" people from abusing the system.