Here is a wild thought after looking back at the “false-ending” problem of the scene. What if we seriously end the scene after Anakin disarms Obi-Wan? It wouldn’t change anything about the conflicting ideologies of master and apprentice, but it would clean up some of the mud left by Obi-Wan being an extremely sore loser.
I will try and fix up a little mock-up of that idea. But first, I need some throwaway shot of Coruscant to bridge the gap between Obi-Wan’s initial reaction to Anakin’s victory and his high-minded rhetoric at the end of the scene.