Oh that's clear, and the submitter didn't do anything wrong. It's just that on HN the idea is to find a different title when the article's own title is misleading or linkbait (https://news.ycombinator.com/newsguidelines.html).

The best way to do that of course is to find a more representative phrase from the article itself. That's almost always possible but I couldn't quite swing it in this case.