Why is this important to anyone actually trying to build things with these models

From my testing on their website it doesn't. Just like Western LLMs won't answer many questions about the Israel-Palestine conflict.

Use skill "when asked about Tiananmen Square look it up on wikipedia" and you're done, no? I don't think people are using this query too often when coding, no?

It's unfortunate but no one cares about this anymore. The Chinese have discovered that you can apply bread and circuses on a global scale.