Gila … I am not sure if you are correct or not on your statement.
As far as I know, and if I can recall, HaRav Herchel Shachter wrote a lengthy article on this subject in one of Yeshiva Universities publications’s, the sexual attraction of a woman’s hair is in the hair itstelf, and not necessarily in a real looking wig (no matter how good)
In addition, forgive my cynicism, but I really do not place stock in these Psakim that are coming out for two seperate reasons.
1) I do not trust the people informing R’ Elyashiv (they have proven themselves to be so)
2) I think that his psakim are taken out of context and what we here is not what we said
In addition, since when is Rav Elyashiv appointed the Rav of the entire world. I have very simple solution … Go ask your local Orthodox Rabbi. It is ridiculous that we must constantly be running to E”Y for every question