That article focuses not on the mechanics of action (increase of sodium intake -> higher blood pressure), and doesn't question the fact that reducing salt intak

That article focuses not on the mechanics of action (increase of sodium intake -> higher blood pressure), and doesn't question the fact that reducing salt intake lowers blood pressure somewhat (albeit not by a significant amount), but that at a global level reducing salt intake in populations does not reduce overall mortality from heart-related conditions. There might be many confounding factors at play. As the authors say, every study about negative effects of salt can be offset by an opposing one, so it is definitely something to be studied in more depth.