If they're using drones to race officers to the scene to potentially capture evidence before the human responders can manage to get there, it seems like a good idea. But if the idea is to delay human responders who will wait for the drone footage before moving in, that just sounds cowardly and bad for victims.
The real idea is to get the public acclimated to police drone use by first using them in some mostly-innocuous way. Then in 10 years, they find some other pretense to start attaching weapons. For your protection, of course.