Book 10 was a filler book. I personally liked all 11 books, but then again I am one of those people who enjoys just reading about that world. RJ did a fantastic job showing how people defend their prejudices and preconceptions, as well as their hubris. Even the main characters are not free from this scrutiny. The prophecies of the Dragon state that he will break all bonds and traditions, yet Elayne refuses to accept the throne from him. Rand is proof that the Last Battle is coming and soon, yet the Aes Sedai, who of all people should know better, are too set in their ways to place the preparation over their traditions and foolish arrogance. All of this allows us to more easily understand why the Forsaken can so easily manipulate situations and cause chaos.
As for your question, Shaggy, pardon my french is an old insult, insinuating that the French language itself is vulgar, therefore all vulgar words can be considered French.