Tolkien's Christian inspiration ignored in Beyond the Movie: LOTR

Throughout this episode, various actors and crew of the movie, all the way up to Peter Jackson, gave their views of Tolkien's inspiration for LOTR. His upbringing in rural England, experiences in WWI, and the brutal industrialization of the countryside were discussed. Yet no one even mentioned what Tolkien himself wrote to a Jesuit friend, that LOTR was a "very Catholic" work. It's hard to miss for anyone with even a smattering of religious background. Throughout LOTR, specific scriptures are referenced, e.g., Aragorn is called "ancient of days," as the Messiah was designated in the Old Testament; Galadriel advises the Hobbits "let not your hearts be troubled," as in John 14. She presents seven gifts to the company, representing the seven sacraments. The way-bread which sustains them corresponds to the Eucharist. When Gandalf reappears after he's believed dead, he's pure white--even his hair--just as the transfigured Jesus was described. I wonder why NatGeo didn't have enough respect for Tolkien, or enough integrity, to be honest about the religious foundation of the whole story cycle. Possibly they edited any such references from the interviews because it didn't fit their agenda.