Everyone knows
At this time, Oscar's message was being played for all of humanity to see. Wherever there was a faction base, a spaceship out far in the sticks, or even if you were currently in the school toilet. If one didn't have a screen ready where they were, then one would appear from their watch, and if they didn't even have that, then it was still impossible to miss the message since it was being played over intercoms everywhere.
'Why does he have to send out this message now of all times?' Sam thought as soon as he heard the introduction. 'I was hoping for Quinn and the others to be gone by then, and I was going to explain everything to the faction myself in the meantime. Now it's going to look like we were trying to hide it from our own people.'
Whether they liked it or not, they were about to be thrown into a rollercoaster of a situation and there was nothing they could do to stop it.