Like the idea a lot. More OTish. However, as some people said above you'd be loosing excellent John Williams score, perhaps having some with music and some without it (considering the duel's edited in paralel with something else)

I think that even if the video is fine as you posted it, I'm curious about what'd be the artistic feeling if you added to the SFX the fast paced breathing of the two of them fighting and the sound of their footsteps. Just to emphatize Anakin and ObiWan's points of view in the duel. Like a tennis match (?). Music could start when Anakin seems to be strangling ObiWan as a dramatical point (and he kicks Anakins back).

There already is an ¿experimental? musicless scene in the theatrical release or ROTS; when Palpatine is about to reveal himself as a sith to Anakin, that dialogue has no score