Pretty much. If the Legion is the main faction of pirates past the belt in recent years, then they've likely tangled with the Saturn Defense Force, and Holden, as a result. If the pirates are arming the insurrectionists through arms dealing, or are otherwise collaborating with them, then I'd expect the SDF would make taking down the OOL a priority of theirs. Granted, insurgent activity has died down in recent years, so that might not have happened, but it's certainly a possibility.