There's a huge difference between a "hobby" drone and those being used commercially, when it comes to the law.
I have to register my UAV using the same paperwork I'd have to use to register a Learjet. Then, I have to get a Part 333 Exemption and a Certificate of Authority to fly from the FAA. The UAV pilot must have a pilot license, in my case an ATP. Even then, they put strict controls on what we can do. As such, my drones are considered "aircraft" under the law.
A hobbyist, by contrast, only needs to register the drone into an online database. That's it. No training requirements, no need for a pilot license, and no FAA restrictions.
My point is that if they make us treat our UAVs as "aircraft" in terms of registration, training and operations, they're "aircraft" in every other sense. It doesn't matter that there isn't a human onboard.
p.s. I'm not snooping on you. I'm out to do a job.