Missing the Mark

Interesting theory, I just wan’t to add that it is strongly hinted that Iroh had contact with the spirit world in ATLA, so it is possible

Yes, someone reminded me about Iroh contacting the spirit world but we both agreed that the only reason he was able to do this was because of his wisdom and understanding that the world needs all four elements for balance and not just firebending. With that being said, I don’t think that Amon would be supported by the spirits to take away bending from people who, though not using their bending for the best reasons, aren’t exactly disrupting the balance of the world.