I think all deference should be given to the person rolling and sharing the map. That said, my impression is that the game mechanics degrade with any deviation from standard size/pace 8/16. In particular, I feel like the number of trade routes and spies should scale somewhat depending on the number of AIs in the game. The larger maps just feel like more a grind to me. Can you give me some examples of “more alive diplomacy”? Maybe I need to be more on the lookout for the game to be better! More civs should mean more ideology tension, and a better 3-way balance, but I can’t say I have picked up on that. But I do not much play larger maps myself. OTOH, anything to to encourage Liberty over Tradition is welcome. I think that this is good enough justification on its own!