Unfortunately, there’s no information in this story about the vintages, which is crucial to stop the sale of the 750mls. Most of it — more than 9,000 bottles — are 258ml (WTF?), so we won’t need Don Cornwall’s assistance in spotting those. That suggests that the counterfeiters aren’t targeting sophisticated buyers.
Note, also, there was fake Perrier-Jouet, which I’d think would be trickier to make.
Finally, note that the raid was nearly two years ago, in January 2019, but was only disclosed now.
the trailing 8 might have something to do with luck in China, but I cnat think that overrules wanting to make it in an actual wine bottle format that Bordeaux would produce