It's basically an export control issue. Governments want to be able to enforce bans and embargoes, so the companies are required to install such sensor packages. Also, the 1-month issue, as clearly explained in the thread, is about someone having a contract with a terrible service company. The Mfg rep weighed in very quickly with a "call me and I'll have that straightened out for you immediately" post.
Remember, we're not talking about garden gnomes or 3D printers. These machines are the real thing. Pick the right two, and you can very quickly be up and producing 50-100 machine guns a day. Real ones, not plastic zip guns. Or pump impellers for uranium enrichment plants, or nuclear weapon components, you name it.
Or, of course, excellent and non-controversial things like anti-lock brake components. The point is, the issue is about more than just companies being jerks.