So... the tech isn't being restricted from going out. Volumes per trusted partner/vendor are restricted in such a matter that Nvidia doesn't like it but it isn't really ANTI anything other than empowering hostile nation states from using militarized AI processing to attack assets and holdings within their allies territories with agile AI drive attack methods and vectors. (Yea honestly that's real. AI has all of the patience and all of the capacity based on hardware to conduct truly debilitating attacks.)
While this will not prevent hostile nation states from developing their own as compute scales to AI demand the ability to easily scale and drive AI in foreign hostile powers is something that should be controlled as much as possible. Keeping their AI slower and less powerful than our own hostile AI engines (and I am confident we have such) is fine.