Most people can't operate drones, period.
FPV is a skill you can learn though and for filming armed thugs I actually can't think of a better tool because it allows you to fly the drone out of LOS so you can do it from a relatively safe position while still getting footage that matters.
For extra protection you could even abandon the drone and record the video directly on your headset.
> Most people can't operate drones, period.
Technically true I guess, but learning to fly a recent DJI drone takes about ten minutes. You're not so much flying it, as telling it what you want and letting it fly itself. And the controller has a built-in tutorial with a simulator.