Removing it would deprive the Coalition of one of it's current/past RP's. The Coalition intended to invade Cayman when the Reapers were still around and attempt to take it (or at least part of the system), all RP of course but with the downing of the Reapers we've been waiting to see what new inhabitants it would hold, if they are folks we don't like we'd proceed with the invasion. Deleting it would be both a disservice to the system and factions involved in it.