The EO contradicts the Constitution by declaring that agencies must refer to the President and the Attorney General for all interpretations of the law. This is a novel proposal not rooted in the historical functioning of the federal government.
The government agencies' powers come from the legislature and must follow U.S. Code, derived from the legislature's laws. Agencies hire their own counsel to make guidelines and regulations from U.S. Code.
As a technologist, you have the confidence to interpret the law and the Constitution from your version of reasoning from first principles. However, the Supreme Court and other courts repeatedly disagree with your interpretation, which willfully ignores the first article in favor of the second.
> The EO contradicts the Constitution by declaring that agencies must refer to the President and the Attorney General for all interpretations of the law.
It doesn't say that. It says that agencies must follow interpretations published by the President and the Attorney General and may not publish contradictory interpretations. And even if it did say that, how would that contradict the constitution - which says nothing about who is supposed to interpret the law and charges the President, and only the president, with ensuring the laws are faithfully executed?