Yeah, making it quigon wouldn't do much except raise the question of why he would go against the Jedi order, especially with the whole "we can't fight a war for you"
I was just watching the fall of the Jedi trilogy and noticed how easy it would've been to cover up the whole sifo-dias misstep or change it into someone else who died 10 years ago, and had ties to dooku.
i also remember someone posting a clip from the end of Attack of the clones a while back were they changed the sidious/dooku dialog to call him (dooku) vader. Sure, a nice twist for those who have seen these movies before, but raises the question "has palpatine run out of names?"
reguardless, there's infinite possibilities for these edits, and it's nice to see someone make ambitious changes for the better.