Want to add another story to the pile and say that this version feels very fun and balanced.
I'm at 1985 in my current warlord game (random victory condition), so haven't quite won yet, but I want to recount how my opponents worked together to hinder my lead and potentially lock me out of the game. I was Greece going for diplomacy (CS alliances) and gold (trade routes) to transition over once the victory condition was revealed. Things were going well until the first world congress, when the entire world became alert to my dominance.
Immediately all other nations on earth declared war on me. This was not to attack my land, but destroy all my trade routes (went from 15 to 2), attack my CS allies (through conquering or diplomats), and push anti-Greek proposals in the world congress (open door policies, sanctioning me, decolonization, etc.). This forced me to use all my delegates at being reactive, rather than proactive.
This went on for quite a long time, but eventually I made peace with all the nations and am getting my trade routes back online. My CS alliances are half of what they were, yet still robust. I am still leading the game though by a much smaller margin. I have constant spy activity against me and no one will trade with me or allow embassies/open borders. Nukes are just being developed, which is making me very, very nervous (I only have 5 cities).
Science was revealed to be the victory con and immediately "space regulations" was proposed at world congress. I still anticipate I will win but the AI really came together to hinder me, and I'll report back if anything remarkable happens from here on out. I just think I'm too far ahead for another civ to beat me, unless my capital gets nuked (could totally happen).