As far as I could tell, the person that influenced Abbadon into becoming the Destroyer was not a member of the council, and at this point it's theorized to be one of Samael's former concubines/wives/whatever. Abbadon was originally acting on his own in a bid to destroy hell without ever getting the council involved. The council got involved by sending War alone, knowing that he would fail and thus be able to send him back on a mission of revenge, him apparently being the only horseman that would follow through with it just on revenge. The only angels that couldn't return to heaven were the members of the Hellguard, the ones tasked with fighting the Destroyer's armies.