I'd give the submitter more credit than that. The title was cut for length, retaining the earlier (and presumably more significant) aspects of the original. As I noted in my other comment, wordsmithing title is a challenge, and most people probably aren't fully aware of HN's nuances and preferences in the practice.
And you did do a better job of it, as I also indicated a few minutes ago.
Of course, no negativity towards the submitter – I was just trying to make an argument for editing titles more carefully and trying to preserve original meaning. I think you did a better job in the sibling comment though!
And you did do a better job of it, as I also indicated a few minutes ago.