Agreed.
I also have a question: What on Earth qualifies the Ninth Court to determine “imminent danger”?
Nothing, and that is my point.
While it is fun to point out that both District Judge Robart and the Three Stooges of the Ninth Circuit are dumbasses who haven't kept current (there have been at least three terrorist incidents or arrests involving immigrants from the "Maleficent Seven" that we know of. No doubt the FBI has thwarted more.) But entertainment value aside, both Robart and the Nutsy Nine have made a big deal out of the fact that Trump's argument doesn't cite any people from these countries committing terrorist acts.
They're laughably mistaken, but it is irrelevant and dangerous to the legal question.
The judiciary aren't entitled to proof that a law, EO, or even a policy position taken by the lowest bureaucrat in the bowels of an obscure office building in the hinterlands will actually achieve a stated purpose. To act as if they had such a review over political decisions is fatal to government of, by, and for The People.