It's about whether any of these deeper discussions we have about the series are a result of the deliberate planning of the writer. Many writers (RJ included, as indicated by numerous Q&As) are surprised by the depth of the discussion that occurs as an outgrowth of reader interest.

A reader can find many examples of symbolism and parallels if they work hard enough. Entire degrees and courses of study are based around teh deconstruction of literary works. Thus I think it is not a matter of redundancy, but a matter of different people seeing different things ina story that very well might be very simple.