The court has no authority to issue the order.
They have ruled that he is under jurisdidtion of the Defence Deparment therefore not under his jurisdiction.
The old "separation of powers" thingy.
Maybe the administration wants something more restrictive.
"They have ruled that he is under jurisdidtion of the Defence Deparment "
No, that is what they are going to decide.
But since the court must keep within it's own constitutional powers:
"the court will examine only whether the president has some evidence to support his designation and whether that evidence has been mooted by subsequent events" (paraphrasing)