“No quick wins” is some weird editorializing OP. That phrase is nowhere on the article.

The closest thing to it is that China managed this breakthrough due to “strategic stamina,” i.e it took time to make this work.

Overall, this is a huge accomplishment, especially if China is willing to share the design. Even if they aren’t, this should dramatically ramp down China’s fossil fuel usage over the next couple of decades, so its still a win for the test of us.