I'm not a big fan of Instagram, but the HN title is missing the "lawsuit alleges" part of the real headline.
No, he did veto them. The issue with the title here is that they don't mention, that he did it because he had no data that would show they are of any effectiveness. This was brought up in the previous discussion of which this one is a dupe: https://news.ycombinator.com/item?id=38199670