The author, Jonathan Poletti, seems partial to the idea that Tolkien's writings can speak to everyone. Everyone includes Christians. For commentary about Rings of Power sometimes from an Orthodox Christians perspective, see: https://medium.com/harfoot-homely-house-h%C2%B3. If anyone's interested in an Orthodox Christian take on Tolkien's world, see this podcast: https://www.ancientfaith.com/podcasts/amonsul