I don't see anything wrong with people posting TechCrunch articles to HN. All these sites have their downsides and different users have different preferences. But this is a duplicate of an earlier thread, so we'll move the comments thither.

It's always worth changing the URL to a better source, though, so maybe we'll use your URL on that one. Edit: it doesn't seem particularly substantive to me either. So far I haven't seen an article that seems good enough to swap out the main URL at https://news.ycombinator.com/item?id=23361987, even though that livestream is past its best-before date.