The original title made clear that this was about sizing for women's clothes. I'm not sure why that was removed; it wasn't clickbaity, and made the title more informative. In fact, I'd argue that just "Sizing chaos" is more clickbaity. (The article itself doesn't seem to have an official title.)
The url includes "womens-sizing" but I don't see that phrase on the page when I view it. "Sizing chaos" is the HTML doc title which is a legit option HN titles (https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...). That's why we went with that one.