The point being made by the author is that "following the news" nowadays has nothing to do with being informed. Instead, it became about being constantly bombarded by a barrage of noise and nonsense to constantly grab your attention.
So instead, by finding a monthly publication giving him an overview of the local, European and world news, the author is looking for a filter removing all the unnecessary noise. And the month granularity should be more than enough to allow him to be informed about important changes.