I h8 to spoil you'r argument but this string is about y fr is BETTER that gh not where they came from. I do feel that FR is much better than GH as there is a more complete world out there with it's own regions much alike today.
Another point i find is that FR and GH i think are set on the same plannet just different sides of Toril so NWN 2 couldn't go to another comntinent as it would just bo going to GH and so couldn't b Neverwinter any more as Neverwinter is Purely FR