Sure: if the US government declared a critical defense need for ML GPU's, they could lawfully order Nvidia to divert production towards that. That is not the case here–that's not what this Executive Order says. We're talking about the software models: ephemeral, cloneable data. Not scarce materiel.

Moreover. USGov is not talking about buying or procuring ML for national defense. It's talking about regulating the development and sale of ML models–i.e., ordinary commerce where the vendor is a private company, and the client is a private company or individual. This isn't what the DPA is for. This is plainly commercial regulation, a backdoor attempt at it.

How can an order that puts restrictions on the creation of powerful models somehow be twisted to claim that those restrictions are required to increase the availability of that tool?

Further, the white houses stated reason for invoking the act is to "These measures will ensure AI systems are safe, secure, and trustworthy before companies make them public." None of those reasons seem to align with the DFA. That doesn't make them good, or bad. It just seems like a misguided use of the law they're using to justify it. Get Congress to pass a law if you want regulations.