 This was mostly a business call publishing this book could make the publishers loose customers or even authors so they chose not to publish it.
   The author brilliantly is taking it as a business opportunity to market as something that was banned. With the american public so divided over right and left it will get a lot of publicity. 
  Persoanlly I am for more people doing self publishing and not using the big 5 as that makes books cheaper for me. At the same time the topics and stories are not just those that are acceptable to particular group or ideology.