This kind of thing is why I love that JRR Tolkien spent a whole introduction page lambasting people who read too much into symbolism in books and stating explicitly that Lord of the Rings was written as an exercise in long-form storytelling with no hidden meaning.
That just sounds like a (very) elaborate troll. Write a three part book stuffed full of symbolism and then write an essay complaining how people read into the symbolism.
And surely what the reader sees in a work is at least as valid as what the author intended. If I see Mordor as Stalinist Russia, isnt that my prerogative? Its selling the art form short if the only possible interpretation is the authors own. /rant (against a dead guy)