Small clarification: the post's screenshot is of the News mode in Search, and not news.google.com. I think the latter is what people think of when they think "Google News". Whether the same problems are there as well, I don't know.

I also notice in the screenshot that the query isn't visible, it's on page 4 of results, and there seems to be a banner saying that the search is expanding beyond the set filters. I agree it certainly shouldn't ignore the date filter, but otherwise depending on the query we might already have exhausted useful results by page 4.