This is absolutely traditional for every country, though?
Samuel Slater brought the Industrial Revolution to America by memorizing the banned-for-export designs of water-powered spinning machines. The Brits nicknamed him "Slater the Traitor" for his trouble, but within a generation new industrial technology was being developed in the US off that basis.
British porcelain production in the 18th century was driven by the letters of a missionary in China, who secretly observed the details of Chinese production and sent them back to Europe. Mistakes in replicating that process lead to "bone china", the strongest and purest-white form of porcelain known.
Stirrups, famously (and debatably) a formative element of medieval warfare, originated in the caucasus. The Byzantines captured some of them in a war with the Avars, and within two centuries they were widespread across Europe. An invention that was at the time fueling mounted archery in Asia was combined with European iron reserves and metallurgy to (re)invent armored heavy cavalry.
Everyone excels at copying. It's much easier than inventing! That doesn't mean they won't invent further once they've caught up in a specific space.
And yes, it's possible to build infrastructure and education better suited to copying than inventing. That's not terribly surprising, and in fact downright sensible. Following WWII, both the PRC and the USSR focused heavily on replicating American nuclear and industrial developments, because they needed to not only obtain that technology but build up a core of technical talent capable of maintaining and modifying it. That didn't stop the USSR from later pursuing their own R&D to compete with projected American advances, and there's no good reason to think China won't switch to a heavier R&D footing in 10 or 20 years as current copies become widely used and understood.