When it comes to submission titles, HN has a tendency to change them for no obvious reason even if the original title hasn't changed.
There used to be a site that tracked this.
Here's the page for the article in question: http://newsdiffs.org/article-history/https%3A/www.nytimes.co...
Respectable sites usually include a list of corrections and changes made to an article after publication
Generally, most people who read an erroneous original will never see the corrected version.
When it comes to submission titles, HN has a tendency to change them for no obvious reason even if the original title hasn't changed.