Given the vast distances from system to system, any extra-terrestrial civilization communicating via radio are long gone. If they have developed technology beyond RF, then SETI does not detect it, making their endeavor useless except for the possibility of discovery. If (big IF), such a civilization exists, there is absolutely no way to communicate with, let alone meet with, said civilization. If all they seek is discovery via RF, then it should have been discovered by now.
Sure... WE are in a system isolated by vast distances, but not all planets are.
We are on a thinly populated wisp of the outer edge of our own galaxy.
Imagine what it's like further in where stars are not nearly as far apart.