Im not sure for this one. I think they just said to both sides they will join one or another, and then we said them to wait a bit more and they left to perks.
Very similar was when i came back and said to pick these archers, now called "fatality cp" (not sure if same ppl), but we picked Rise and rise left after 3 months.
Still there will never be oposition in eu prime because nobody wants to lead. Izi life for perks.