I think the basic approach of this mod is very good. And I can definitely appreciate some of the design decisions.
However, I would have preferred if the traits were changed more in the spirit of what the developers wanted to achieve and if they were historically accurate.

What do I mean by that? Well, let's take Japan as an example. Their trait is called Bushido. Which translates as "The Way of the Warrior". So Japan in Civ V is obviously intended as a civ that is suitable for warfare and whose whole culture is geared towards it. So shouldn't we try to welcome that instead of demonising it?
So how about every battle won, every military building, every city conquered giving a culture boost/bonus?
And instead of messing around with the Zero, you could replace it with another UU or UB. Like a samurai archer, for example.

Translated with www.DeepL.com/Translator (free version)