From 14.01 Patch Notes: Fleeing or distant Interceptors at surface settlements/Invisible Thargoids at surface settlements
I'm very happy to confirm it's solved. However, it's solved in somewhat humorous way. There's no Interceptors at all. Including invisible bugs.
Progress bars are blocked, sometimes there's no progress bar, endless scouts are coming. I checked Farkas Oasis in HIP 23716 and Turzillo Point in 63 Eridani,
for hours. Have not seen one Interceptor.
So, if somebody want to enjoy to meet Interceptors, you should fly and jump around, there's enough hyperdictions and interdictions, fortunately. It works like a charm.