Even if it was surface level, that's still better than what came after. Link still bears the image of the Cross on his shield, a Bible is an item, and he prays before the Crucifix in official artwork. Even if the japs had no idea what any of that meant, they still took directly after Tolkien, The Lord of the Rings, and his Catholic faith. I still perceive Zelda as a very traditional series though, even after Skyward Sword, because it isn't ambiguous in it's themes of Good vs Evil and Evil being an aberration that should not exist and must be destroyed. It is very much in line with Christian teachings, even if Christ was replaced by three goddesses. Unlike a lot of Japanese/Asian works, which depict evil as being necessary and the flip-side of Good. Zelda is a lot more western than we think.