Their motivation is almost certainly to cause disruption, aid in espionage, and do the bidding of the CCP.

This reads like a carricature of patriotic 80s movie dialogue. At least it skips the bodily fluids part.

It's tit for tat for the threats of them getting banned, that's all.

Nobody needs commercial local drones for all that, nation states have had powerful satellites and other means. Jackie Chan flying a Mavic over some facility ain't gonna reavel shit anybody doesn't already know...