I know it's really popular these days to shit on journalists, and I agree that the quality of some outlets can be less then desirable, but it is an incredibly difficult field that involves a lot of work, little pay, little thanks, and terrible job security.
Looking at this article, there is no Author by-line, but just the "Global Health" topic. Digging in, their Global Health topic is managed by their "Global development" team, which has a single writer assigned to it on their Contributors page [1]. I am sure free lancers contribute to this section as well, but I am trying to illustrate that this team/writer is probably on the bottom of the totem pole when it comes to resources and priority. If this story would never have been written if it had to pass HN's level of scientific article standards.
[1]: https://www.theguardian.com/index/contributors