To be honest this is nothing I really have seen so far but that could be because I don’t jump from planet location to planet location in rapid succession. I have hours or even days of real time between visits to those places, so I normally don’t remember the layouts of the places or the position of dead body’s (especially with all the dead spacers or pirates added).
And that lots of those places have nearly identical layouts is something that I expect, those are often old military facilities, build with layouts defined by military bureaucracy.
And the civilian facilities are all build from the same limited set of easy and cheap available outpost modules, that those are hugely identical is not that far fetched.