I think the most likely explanation is that someone saw a drone or two at night and posted a photo on social media. It can be very hard to determine the actual size of something in a photo, so it probably looked a lot bigger than it was. That got everyone worked up and now every light in the night sky is a “drone”.
That will be more likely as more people start using SteamOS.
If SteamOS can get enough users, then not supporting it will start to hurt the game developers profits.