Yes, it's a novel... Mark Twain's novel, he did not need to write 200 times that word or, much better, he didn't "need" to write that novel at all, and it would all be more silent and peaceful now... but he wrote it that way, and whenever you refer to that novel you are referring to all the words the way they are put together.
Maybe the only way you read and make sense out of a book is by counting how many times a word appears and not why it does so. Maybe you'd prefer that all written books and books yet to be written follow very specific rules about the occurrence or even the mere appearance or not of certain terms you consider taboo. Maybe you consider more meaningful repeating less meaningful phrases like "good morning" or "hello" to people who would not appreciate you any less, nor any more if they were not greeted by them. The world you liberal and activist mind adumbrates would be a Pleasantworld, in shades of 1950s American TV grey or in bright Soviet/China red.
But if your prudish ignorant brains or whatever you have in its place can NOT deal with Twain's book, just put the goddam book away, get back to your happy comfortable life and let adults and the real world go their way.
Again, people should stop acting as if this sort of issues were about "THE words" and something "coming" from them... words are not like the real world, they are your take on the real world and words are what you make of them and only after that they can reshape or distort the world... but if you only take this latter part and ignore or simply are afraid to deal and master the use of words and concepts, you will always be scared and manipulated by those who impose their own values through the words.