It's highly misleading, because my Taiwanese girlfriend has acne (worse than mine, and she's over age 30).
She probably has some Dutch blood in her from 400 years ago (her mum is from Tainan, and the light brown hair, double eyelids, and larger cleavage are probably a result of that too).
What the article is suggesting is that if that contact hadn't happened 400 years ago, she wouldn't have acne. Malicious propagandists could easily exaggerate that to blame Western civilisation for their ills, which I think is divisive.
The real research has shown a statistical correlation within a small sample size. That doesn't imply causation, or give any guidance on how to manage or mitigate the effects.
If future children getting acne is really your major worry about choosing a partner, the research might be of interest to you, but it fails to emphasise that even connections in the distant past can have an effect, and rejecting Westerners is not a suitable solution.
