I think on HN, people generally want the submission's title to match the page's title.
(I do agree it's clickbait-y though)
I think on HN, people waste too much time arguing about the phrasing of the headline, whether it is clickbait, etc. and not enough discussing the actual substance of the article.
I prefer improved titles. However, not in this case. It is rather irony, because LWN does not need click-bait.
Guidelines say fine to editorialize in these cases.
> Otherwise please use the original title, unless it is misleading or linkbait; don't editorialize.
https://news.ycombinator.com/newsguidelines.html