The only problem with this theory is, the speaker was just making things up and rambling when he told ghaul this.
That's why shortly after this he tells ghaul that he speaks for the traveler, but the traveler doesn't speak to him.
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Except the Traveler did in fact speak to him through dreams (albeit cryptically) and this criteria was fulfilled by Prince Uldren Sov when he was resurrected as Crow.