This is utterly ridiculous and stupid and there is no way Dark Council would approve that.
Not at all. The Dark Council is mostly comprised of either powerful morons or powerhungry egomaniacs. t's no stretch that they would approve or accept the dissolution of Imperial Intelligence. What do they care, except what benefits them personally? Not a SINGLE one of them is what could remotely be considered a [for the empire!] patriot, nor do any of them really give a damn about the Empire as to except how it benefits them personally.
It's why they choose to dissolve imperial intelligence, why so many of their number are slaughtered throughout the story, it's why they generally just sit around plotting to kill each other.
Not that I disagree with the general content of your argument. I just wanted to point this out.