The PLA and Chinese MIC is nortoriouslt secretive, so a publication like this implies that the project is quite far along and that most of the big hurdles have been cleared. Remember that the Chinese MIC is almost all state owned so it doesn't have to publish puff pieces of appease shareholders.
I'm guessing this is a lot harder to stop than a drone though. If you're getting a slug of solid metal coming at you at hypersonic speeds, presumably destroying or deflecting it is a non trivial problem. And I'm guessing this kind of weapons would be mounted on ships with nuclear reactors?
In the US, the navy poured a vast sum of money and decades of work into rail guns, but had to throw in the towel in 2021 to focus their limited resources on hypersonic missiles instead.
This is exactly the point of that article, they did fixed that, shot 120 times in a row and it didn't break. it's still impractical because complicated as hell, big and putting it on a ship would require nuclear reactor for power, but that one problem is apparently solved.
eh, nuclear reactors can fit in a fridge now, and apparently the tech is so widespread that theyre easy to make, so I can see china putting them on everything they have, a big fuck you to america haha