Taking another peek at EB's 'features' page, I read this passage: "Diplomatic relationships of rebel cities with existing factions accurately represented, with severe consequences for AI and human players who violate those alliances."

Now, I've never noticed anything like that in the game, so I was wondering, what those consequences are. When you play as Seleucids, Carthage or Makedonia, which Rebel cities are you then diplomatically related to? Is this related to Cyrene always revolting to me, for no apparent reason, when I'm Seleucid or Makedon, despite having no foothold in Africa at all?