they probably dont even know what the book is about, its all about how much a book sells, and if it doest sell good, they take it off the shelves to reduce costs of ordering the book at the publisher, very simple, and it has nothing to do with furries, its just bussiness,
the fact that the book was anthro, was probably just a coincidence (this was only directed at the persons who actually thought it had something to do with the fandom)