The balance in the role of man and woman is the ideal world which both cities were trying to achieve at the end.
But I actually think there are 2 rather plot wholes to the female-centric world setting:
1. Militarism is considered the main symbol of power, even in the rose city does not make sense. I agree that women can be equally talented and passionate about militarism, but retain this concept for a female-led society is a bit shallow thinking.
2. Why would the musical concubines behave this feministic? Why do they play music in the first place (which is the same art as female concubines in ancient times)? Why can't they perform arts that are "more masculine" and appreciated by women? I wished there could have been more creativity to some of the details given the stage was all set.
What do you guys think?