It's not a massive deal, it just seems a bit odd. The HN crowd is the main market for something like this, so you'd think somebody there would have a clue about this site before promoting on it. Plus, this would be an opportunity to e.g. link to blog posts by previous participants describing their experience. I think that would probably be the most useful for potential applicants.
I understand your point. I posted it here and been around long enough to (mostly) understand how HN works. That may not be true of all the others involved in the programme.