The President may have acknowledged the process, but not the conclusion.
If he immediately blasted the lower court as completely illegitimate, the Left would have nuked Trump as a dictator. As it is, he has the full 9th Circuit second-guessing itself right now, based on a broad reaction to a ruling that obviously disregarded the actual law the Executive Order was based on. Even the 9th knows the limits of its credibility and may end up doing the right thing without Trump escalating things.
If that happens, then Trump wins in the long run because future courts will think twice about making totally partisan rulings that disregard the law, especially since the Left is flooding all the courts with lawsuits now.
-PJ
The left may have tried to 'nuke' the President for asserting his legal and constitutional authority to restrict travel to this country, but their efforts would be for naught. He can't be impeached for exercising his lawful duties, and wielding the power of his office within its legal limits.
The court may indeed beat a hasty retreat from this overstep of their constitutional jurisdiction, but that still leaves them in an assumed position of supremacy over the Executive branch, which in itself, is a kind of precedent that should not be allowed.
This really has gone much further than the various individuals and parties involved. The actions of the court and the administration, are now defining the very nature of the balance of power between the (supposedly) co-equal branches of our federal government.