What I like is how suddenly, it goes from Yankee to Dixie and then to Texan, just like that. They don't even mix the pops.
This is a problem with the Victoria base pops in general though, I'm guessing because more a more detailed setup would've taken a lot longer to research. To name another example: as I recall (but I might be wrong as it was a long time since I last played Victoria) Istanbul is 100% Turkish as well from the start.