Because something can or is done in Darkness does not mean it is done in RP, however, despite what many seem to belief. For instance, hyperspace in Darkness is a 'warp' function similar to Star Trek, whereas in reality people travel along widely established hyperspace lanes. Scouting the galaxy is extremely slow and extremely dangerous. We're talking a process of years just to find one new system, and that's at the fastest.
The Western part of the Galaxy has always been known as the 'Unknown Regions', a place of myth and danger that nobody in their right mind ever went into. It's just kind of a staple of the Star Wars setting. I don't see us exploring it to any meaningful degree anytime soon.