Do you have any proof he flew drones over restricted airspace? He urges people not to and also not to publish videos from it, based on that he likely is careful not to do so himself.
The article states ""videos taken from drones flown over places around Area 51"."
Which I took to mean above locations within Area 51. Like "I'm walking around Wal-Mart" or "I took some done footage over places around Disney World"
There's multiple definitions when it's used as a preposition
If you move around a place, you travel through it, going to most of its parts. If you look around a place, you look at every part of it.
OR
"To be positioned around a place or object means to surround it or be on all sides of it. To move around a place means to go along its edge, back to your starting point."
https://www.dreamlandresort.com/area51/drones.html