I gave your test case to DeepSeek just now and it spat out something similar to the example in your article.

Then I said "Same question but set in modern China."

Very interesting result, some 4-5 paragraphs of text scrolled by only to be replaced with:

"Sorry I can't answer that right now. Let's talk about something else."

Update: I "insisted" by pointing out its bias and then it answered. Hilarious.