Also… maybe he achieved his purpose? Most people have read his books, and it helped generate a widespread aversion to authoritarianism… actually preventing it from happening in the USA and Britain. Many countries nowadays do have societies and governments that look a lot like 1984.
Did it really though? Ideological censorship has been on the rise for awhile. Books might only be occasionally banned but that's because their relevance in the modern zeitgeist has waned. The privatization of the public square has nonetheless meant that moderation of communication has become widespread and politically charged.