There are almost allways loopholes with every regulation. It is about it working most of the time.

I mean we have satellite spying since quite a while anyway and with more cheap satelites that comes bigger.

It is still a big difference, if some agency manages to get pictures of some property sometimes - by flying over with a special drone or satelite - then it is for them to secretly install cameras on peoples land. Cameras can be always on surveilling and are cheap once installed. A drone needs operating, has a limited operating time and can be spotted.

Drawing these fine lines is exactly what regulation is for. You can have air travel without having random people flying over and photographing your kids' backyard water fight party.