The memo literally says that the reason they have these policies is -because- actual technical guardrails are not reliable enough.
https://www.anthropic.com/news/building-safeguards-for-claud...
https://alignment.anthropic.com/2025/introducing-safeguards-...
In your second link, that team was defunded; the person heading it just left ceremoniously: https://x.com/mrinanksharma/status/2020881722003583421?s=46
While it is true that DoW could try to bypass the contract and do whatever they want, if it were that easy they wouldn’t be asking for a contract in the first place.
NSA and other three-letter agencies happily do it under cloak and dagger.
On a quick search I came up with an article, that at least thematically, proposes such ideas about the current administration "Nationalization by Stealth: Trump’s New Industrial Playbook"