I think the main problem with the story is that it tries to magnify the threat based on "protected status". Murder is bad for everyone not just pregnant women (who in fact are murdered less than non-pregnant women). It reminds me of the headline "Hurricane Slams Florida Coast: Women and Blacks Suffer".
Ok, if your point is that by focusing on pregnant women the article implies that pregnant women are more important than others or implies that the risk is bigger than it is, I see your point. I think motherhood is special and that the murder of a pregnant woman should be treated as a double murder, but I see your point. But what you said before seemed to miss the point of the article--the article looked only at pregnant women and never compared murder rates for pregnant v. non-pregnant women, yet you started talking about how being pregnant doesn't make you more likely to be murdered than a non-pregnant woman.