Crutcher has said that he did this intentionally so that censors would not have bad language as a reason to hide behind their disagreement with the book's content, so the only reason it could be banned would be for its subject matter.
Crutcher has indicated that his actions were intended to prevent censors from using objectionable language as an excuse to ignore the book's content, meaning the only reason it could be banned would be due to its subject matter.