This is kind of crazy. The text of the amendment is as literal as it gets. If this had failed it would have basically meant emptying Congress of all of its powers, because now the executive can just pick whatever interpretation they deem fit to their goals and run with it.
The rule of courts of law is to interpret the law, not to pick new creative meanings out of them. That's the role of the legislative power - otherwise what's stopping a court to reinterpret the meaning of any word in any legal text and allow the executive to rule by decree
"subject to the jurisdiction thereof" is not a clear statement.