(I'm not a fan of the HN submissions which are short, anecdotal blogposts, that leave you questing for the rest of the story across the internet. I think all those previous ones were of that format. Discussions that start in medias res and assume you've been following every new development daily from the beginning).
However, this isn't some isolated story that happened a week ago and nobody knows what's happened in the days since. As evidenced by the many discussion comments many have been following the developments/commentaries. Each of those posts were appearing as the story developed and/or referred to the initial overarching incident. Some even reference the other posts as part of the development. My thing of course when we get to this 'long-form' coverage is must we then repeat all of the prior discussions? Perhaps, but there's the prior discussion links anyways.