Alright, is it just me, or did hal have a good point even if he sort of botched the delivery?
The PT change in lightsabre style was not story motivated and it remains as one of the inconsistencies between the trilogies that prevents them from being a cohesive whole. He probably did it because he thought it would 'look cool' and the pervasiveness of Asian culture in the West led him to think that he had to have the Jedi be superninjas just so they could be competitive with the other superninjas in recent pop culture.
Maybe you still don't agree with that. I do. But isn't that what he was trying to say?