Is anyone else still perturbed by the fact that Ghaul had an Oryx moment when he resurrected right before the Traveler disintegrated him?
No, not actually. When we fougth him, he absorbed a lot of Light by force from the Traveler. When we killed him, that Light probably gave him a sort of "Sunsinger" moment. That's all...
When Ghaul took the Light, he became paracausal, at least to some extent. This meant that he could resurrect himself after we killed him.