yes it does
we're just that damned weird as players
No, it makes sense only from an OoC perspective.
Our ability to choose traits from other states was a representation of our in-narrative abilities in taking in and assimilating foreign cultures successfully.
1: Unlike we the players, our in-game government is not actually choosing what traits get absorbed into our society. That is purely just whatever culture becomes successful enough in adding their own part to the mixing pot that it catches on to our society as a whole. Narratively, it just so happens that the highlander immigrants were able to add their own part, which can be attributed to the fact that our cultures grew up side-by-side and have been intermixing for centuries thus making it easier for highlander culture refugees and immigrants to assimilate than, say, Khemetrians.
2: We never hated the highlander people in the first place, but rather we disliked the government in place over the culture. It makes no sense to limit based on culture when our feud is not at all cultural or societal in nature.
If anything, it would make far more sense for the Ymaryn to have a DB like this due to how quickly we have been changing within the last few turns
"
Amorphous Culture: Due to your nature of constantly adding new cultures into your own, your society and culture are constantly evolving in unpredictable ways, for better or worse.
Effects: You lose control over what traits you gain from neighbors, and your traits will sometimes randomly mutate to an unknown based on your neighbors and dominant cultural partners. Taking in refugees raises the chances of random mutation."