Ha - it gets a second chance! I think the main problem is that Medium can have multiple URLs for the same article. So it got picked up as an editor's pick and so has a different URL. Doesn't HN usually give a vote to the previous posting if the URL matches?

I've been wondering what was Medium's secret sauce for hitting the HN homepage so often (a part from a lot of good content). I guess multiple stabs per story helps ...

If the URL matches (or is "similar enough" under some secret metric) then a submission acts as an upvote for the original. In this case the URL is no "similar enough" so it's a new submission.

What I'd really like to see is for this behavior to also give a link a second chance on the New page. As it stands, if someone submits something, it falls off New with no upvotes, adding a vote two days later is completely useless.