What’s the solution you have in mind? Anyone in the Executive branch can interpret the law for themselves and disobey an order if they believe they have a legal basis to do so?
That would be completely paralyzing.
That is why federal workers and the military swear an oath to the constitution of the united states.
Yes.
It would be completely paralyzing were the executive largely staffed with those that wanted to paralyze it. Usually that's not the case.
I don't think that'd be case unless the orders were completely outrageous, in which case, yes, we absolutely want them disobeyed until adjudication could happen.