What you have missed, is that it is very easy to modify the BRP rulesset of RQ3/Stormbringer 5th ed etc. to suit the very heroic style of the Star Wars universe. And as such, it would be a much better fit than the old d6 or the new d20 versions.
Allow characters to use a Dodge skill to avoid blaster shots, allow jedi to parry them with their lightsaber, and create rules for the force, create guidelines on how to do heroic actions (such as jumping from a hovercraft to land on another) using the force, and you would have fast-paced, heroic, and very well suited system for Star Wars.
This compared to the slow play of using a dice pool (d6) or overcomplicated and rules-lawyer style system that totally misses to capture the essense of Star Wars or even make it possible to do what characters in the movie does (d20).
If it was not for the fact that I would have been overun, fined, and otherwise punished by both WoTC/WEG (when they owned it) or Lucas industries, I would have done a document for this a long time ago and made available on the web.
Unfortunately such a document can not even mention the words Star Wars, or you are in big trouble.