I think that the whole point of the article is just to show that the Chinese government's goal of having all desktops on public institutions running only Chinese hardware by 2027 is not far-fetched — a tough task to accomplish in some areas, sure, but they're slowly catching up.
One might ask why bother going with 10-year-old "developed and designed in China" hardware — surely Chinese bureaucrats deserve much better than that on their desktops? Well, I would guess that the main problem is in specifically US-produced chips. It's not unlikely that, besides what they list on the specifications, they also include the odd backdoor here and there — something we know that was done in the past on both Intel and AMD CPUs — so, who knows if such capabilities aren't being used to spy on the Chinese government?
They would have reasons to be paranoid about that — since that's exactly what they do when the roles are reversed (see the standing 'war' with Huawei, for instance). Embedding a wi-fi chip in your otherwise-utterly-harmless USB phon charger? No problem. Almost nobody will notice — unless they open the charger and have the necessary know-how to immediately notice the 'extra' chip there, and even if someone does that, what could be done about it? Inform the whole population that the device X or Y is currently being used by the Chinese Intelligence Agencies to (potentially) spy on them, and kindly return them to the manufacturer? That's extremely unlikely to happen.
But the point is that it can be done and has been done. Therefore, it's no surprise (to me) that China is afraid that anyone would just go ahead and do it via some 'foreign' manufacturer over which the Chinese government is not able to exercise some control...