Both parties can (but won't) embrace moderation as a way of being without changing their ideologies. As I quoted in another of my political posts, David Brooks wrote, "Moderation is not an ideology; it is a way of being. It stands for humility of the head and ardor in the heart. When you listen to your neighbor, you see how many perspectives there are and you’re intellectually humble in the face of that pluralism. When you listen to your neighbor, you see that deep down we’re the same and you hunger to deepen that connection." Read my https://medium.com/illumination-curated/can-we-please-all-find-the-space-within-which-to-breathe-the-same-air-and-agree-not-to-agree-6b6b2c8077ec if it pleases you to do so.
As for the game, the official has to throw the flag. You can't insert that much uncertainty into how the game is called. Plus, there's no time to consider all the factors you mentioned.