It doesn't really have much to do with the story, which is why I think the headline has changed on HN.

That being said, it's a headline. It's designed to attract attention. What you call "linkbait," a subeditor calls "doing their job." It's taking an unusual attribute about the subject of the story to highlight their relative scarcity, thus giving more weight to their achievement in changing the industry. It's like saying, "110lb defensive tackle signs to Giants for record sum." Well now I'm even more curious about this kid than I was before. There's nothing wrong with this article to justify a pejorative like "linkbait."

The attribution of something sinister, unpleasant or suspicious to the word "white" is all you.

Who is it racist against?

why is it racism? I think you need to explain this rather rude and baffling comment.