In general, people are going to interpret this EO with their own lens. Unsurprisingly, reasonable people may disagree on the merits of the EO as a whole. However this part of the EO is pretty concerning > 'The President and the Attorney General, subject to the President’s supervision and control, shall provide authoritative interpretations of law for the executive branch' and later > 'No employee of the executive bra…
It goes against the foundation of not only US law, but couple of hundred years of international democratic tradition in which allegiance is not to a person, but to the nation itself.
US civil servants and military alike swear an oath to support and defend the Constitution not the president or their commander. Illegal orders are not only expected, but required to be disobeyed.
This EO eliminates the concept of an illegal order since the law would be whatever the executive interprets it to be.