It seems like this could be huge for small/local fire departments and law enforcement. If your town can't afford its own helicopter with FLIR imaging, now you can get a dedicated system for ~$1500.
Imagine the benefits if there's a night time 911 call complaining of an ominous crowd gathering in a public place or a band of hooligans tagging homes in a crowded suburban area. Cops could scout the area ahead of time by just launching a drone from their trunk before putting themselves in harm's way. There may be some issues in trying to maintain radio/video contact during something like a high speed chase, of course.
It's interesting that DJI is specifically not targeting these markets with their advertising because of drawing attention from the government? Is the government concerned that the technology will somehow relay the imagery to Chinese spies? Or that it will report false data that would put people in danger?