I think you're responding to the wrong comment, or missing the nuance above.
Having state actors redirecting products after shipping, without telling the company or the client it's happening, and installing backdoors, has nothing at all to do with backdoors from manufacturers.
You seem to have missed this part:
>a foreign nation state would pressure a manufacturer in their jurisdiction to include a backdoor
That absolutely is about jurisdiction and is a much bigger, more scalable attack than intercepting and installing implants. More to the point, it can be done at _any time_ not just the initial ship.