AES states has almost always meant great advances for women's rights. Troughout the Cold War, women in countries like Poland and democratic Germany had far better access to childcare, abortion and divorce than western women. Today Cuba has the world's most progressive code of family law. Feminism is baked into communist ideology.

However, I could imagine that social progress in Korea could have been hinderes by being under brutal siege for generations. I would need a credible source to draw any conclusions.