I've seen that map before. Re-checked it now. It's hopelessly outdated/incomplete. My few thoughts about that at the times were: What about all the cameras in shops? In public transportation and stations?

Now there are even more cameras, for instance on top of the traffic lights of streets where buses drive.

What is the goal of that map? What would be the goal if it were complete? Should I protest? Slingshot/Laserpoint them? Making detours around them? What if a cluster of them popped up near a literal hotspot where some assholes set cars and market stands on fire?