Over coordination is when both alliances are ganging up to one alliance(usually with the lowest point), and pointing that out will get you kicked out! It happened to me.

Queud 3x to sealed rock, our alliance ended up last with points far from winning, but somehow, both alliances targeting us up to our base. So on my third queu and noticed the M.O., I pointed it out in alliance chat. Someone took over and lead, other alliance started attacking the other one, and then I got dismissed.