If you are the spokesman for the Creator of the universe and all that entails, and represents the head of the Christian Congregation Jesus, since their intelligence is higher than ours - that you would get the Creators name right despite "worldly" information!
Would think the Creator would reveal his true name pronunciation to those speaking for him- he did that for Moses.
Would think the head of the Congregation Jesus would clear that up when he choose them in 1919, "by the way my dads name is pronounced......"
It really is "DUH-Trooff"