> The science writer themselves does understand epigenetics — but doesn't think it's important to the point the article is making for the reader to understand epigenetics

That's not a valid defense, otherwise they could write with a straight face that sun exposure causes genetic changes that make you darker, and how your descendants will inherit those changes too. It is dishonest writing, bordering on disinformation. Said article would attract clicks and attention like a cursed magnet, though.