If orders like this are not overturned by the judicial system, then yes, it would be. But this order (or at least the lawyer-banning aspect) will be overturned because the US is not a totalitarian state.
Correct. It shows that Trump is subject to the law but the CCP does whatever it pleases. China blocks whatever it likes because it has no such legal standards.
Yes, the entire state apparatus bows to the whims of one man, which is almost definitionally a totalitarian state. We’re lucky, at the moment, that the totalitarian in charge has few concrete ideas and lacks the attention span to see through even those few.