Kind of, and I did think that was kind of an interesting take. I think a thing that is missing from that is that she does not match the prophecy and the other predictions made by characters in earlier books. So, either the books can correct things to make Arya work or someone else who fits the earlier descriptions would be the hidden hero.
This is kind of handled in the show with Melisandre saying things like, “I don’t see things clearly.” or “there is so much I don’t understand.” but the reader who should, in the end, have more insight doesn’t necessarily see how these things she says make sense just more than they are wrong not because of bad interpretation, but just incorrect.
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