Or if you follow Hanlon's razor, if the Navy is incredibly (scarily) incompetent!
The Defense Department described the subject of GOFAST, Gimble and FLIR videos as "UAV, Balloons, and other UAS". 'Balloons'; they know what it is. They're not even lying, they're being coy or misleading.
https://www.thedrive.com/the-war-zone/40054/adversary-drones...
https://www.thedrive.com/the-war-zone/40638/what-we-know-abo...