Gas turbines are technology decades old, where the established powers had decades more accumulated experience in design and manufacturing compared to China.
People with vested interests always play that card to suggest that China is still decades behind the west, when the truth is that at the same time that China is working hard to make up ground on legacy tech catch up, it is devoting just as much, if not more resources into research and development of next-gen technologies like IEP.
One of the main reasons China is taking so long to catch up on some legacy technology is because China did the math, and concluded that it's better to settle for good enough and instead devote more resources towards next gen tech to leapfrog ahead.
I think a lot of western 'experts' are still in deep denial and will be in for ever more and greater paradigm shocks as China's investments in next gen tech start to mature and pay off.