I dont disagree that diplomacy was less static in 5, and i entirely agree that the system is better in 5 than in 6. but Civ 6 has a lot more conquering and rewards conquering way more, which is really all im talking about. strictly from Ais eating other Ais there is more of that in 6 than there was in 5 from my experience.
Civ V had that weird overpunishing wide approach. However, it is also clear to me that civ VI is designed so the game turns peaceful from middle ages till end game.
VI has now that weird plain DF penalty, that means that if the player takes more than a civ in the game, the whole WC, competitions, emergencies, and favor mechanics become pointless.
VI is designed so domination victory is the hardest to get, and the least satisfactory one, due to the fact that forces the domination player to micromanage hell exponentially with the ammount of cities, and offers no domination alternative to take cities.
VI is designed to not even consider late wars a thing. As so, AI domination victory is imposible making domination the only victory type that the AI is uncapable of achieving. Furthermore, the AI even lacks the knowledge and will to try to achieve it. This is then the first Civ game in 30 years where the AI does not challenge the player to domination, and where big scale wars are imposible. So basically is the first civ game ever where conquering the world is not supposed to be a goal.
It is true that civ VI rewards having more cities, and therefore makes the game easier the more you war, but is also true that the game is also designed to make the game more pointless and boring the more you war. Which is the worst way posible to discourage the player. It is true that is not the first game of the series that is guilty of this, but it may be the first that is intentionally designed to be this way. With repetition and shallowness being not a side effect in late game, but a core design element.
So I think, quite the opposite is true, Civ VI not only discourages war, but is designed to remove domimation and war from the late game entirely.
I would also argue that religious victory, culture victory and diplomatic victory are so pointless and badly implemented and designed that should not even be in the game. While i will also admit that science victory is the best it has ever been.
The game is as a result a game of civilization where global conflict does not exist, domination is non-fuctional, war is broken and diplomacy is pointless. As such, civ VI may be a fun game in many ways, and certainly is one of the most enjoyable games of the series in city building, multiplayer, scenarios and variety. But as a civ game, I think is time to be honest and say it... Civilization VI is probably the worst civilization game of the series to the point it does not work as a civilization game at all. Personally it is the first civilization game (and I played them all) that seriously dissapointed me, and as is also by far the most expensive game of the series. So I think it may be the last civilization game I ever buy it they decide to keep this philosophy.