Although Angus wasn't here, it didn't mean he couldn't control the Surveillance Bureau anymore. Finn Lewis had already turned to walk towards the battleship right after finishing his talk, followed by the original head of the Surveillance Bureau headquarters. Finn hadn't even glanced at the situation here.
If Angus couldn't control the situation here, that would be a huge disappointment for Finn. Of course, such a scenario was unlikely to occur. At the simplest level, even if Angus had no immediate family here, the fact that the system was aware of his existence was all that mattered.
