It's routine HN moderation. The site guidelines at https://news.ycombinator.com/newsguidelines.html ask for the original title to be used except when it's misleading or linkbait. When a title is either of those things, we change it. We do that routinely. The issue is following the site guidelines. There's zero intention to obfuscate.

In this case, the article title is in my judgment misleading—not hugely so, but enough to be worth changing. We changed it to language from the first paragraph, which is where articles typically say what they're really about. If that's obfuscating, then the article obfuscates itself.