A very minor nitpick on the swords: Islam claims direct descent/familial ties to Judeo-Christianity. Muslims regard Christ as a Prophet. Shouldn't the Swords also be drawing on power from the billion Muslims on the planet too?

I know it's not much, but we've had an agnostic and a probable Shinto-Buddhist Knight. May have even had a recent Muslim Knight too ("The Egyptian" - Egypt ain't known for being a hub of Christianity in modern times), to say nothing of Shiro's idea that "God is God" -- which may or may not draw power from Hinduism too, if you squint at it a bit.