I think the point was that all the women were being moved to the "American Women Novelist" sub-list while all the men remained in the "American Novelist" top li

I think the point was that all the women were being moved to the "American Women Novelist" sub-list while all the men remained in the "American Novelist" top list. If they had moved all the men into one just for men also and then made the top level list just link to the two sub lists that would have made more sense. This would also open up a format for additional sub lists linked from the top list.