Because in all their wisdom they are blinded by their own propaganda. We cannot discard that the Saturn level of the Galactic Federation may have also sold them propaganda on their behalf, giving them a false idea that the issues in this soul 13 system are being handled by them effectively. If the Saturn level of the Galactic Federation even exists, as we are now heavily suspecting that everything is being orchestrated from Earth, from deep under its crust, not only from Antarctica, although that would be their main entry point. The Saturn level may only be a military outpost of sorts to make everyone else believe the overlords of this solar system reside there. Take for example the Andromedan Vieiraa which was said to be the Galactic Federation headquarters for Earth.