Sorry, the SCOTUS will rule very differently (its precisely why so much of what the 9th circuit has ruled on before has been overturned by the Supreme court.... because the 9th circuit legislates from the bench more than any other even compared to the most liberal of judges on SCOTUS).
The wording in USC 1182 is very clear. One or two supreme court judges may decide to legislate rather than rule impartially on it...but thats not going to be enough....if kennedy doesnt throw this stay into the garbage can in the first place.
I did read the whole decision btw. There is no statute within 1182 USC that asks the president to "prove" the reasons he had for finding a class of aliens to be detrimental to the US. It is very clear:
Whenever the President finds that the entry of any aliens or of any class of aliens into the United States would be detrimental to the interests of the United States, he may by proclamation, and for such period as he shall deem necessary, suspend the entry of all aliens or any class of aliens as immigrants or nonimmigrants, or impose on the entry of aliens any restrictions he may deem to be appropriate.