I think in this scenario it seems fair to post a question. What's the alternative, write a blog article asking the same and post a link to that instead?
I'm also interested in a status update given some recent news posted on HN about Finland experimenting with the same ideas.
Alternative would be emailing them "Are you able to share any progress on the BI project? I'd bet more on HN would be keen to hear too." Project then writes a blog and someone submits to HN.
However, I can appreciate that the slight public pressure of an Ask YC making the front page might encourage quicker movement or at least a response that didn't otherwise warrant a blog post.
It'd also make for a great way to nudge the community in the desired direction by focusing attention (and away from becoming what's effectively a standalone subreddit).
Correct me if I am wrong, but user "sama" is Sam Altman, President of YC; so if he answers instead of killing the thread, I would guess he is OK with it.
I'm also interested in a status update given some recent news posted on HN about Finland experimenting with the same ideas.