Risks of too little sodium are a valid concern only at levels massively below mean intake in the U.S., while the harms of excess are with us right now. The priority, obviously, is fixing what's broken. Kudos to the FDA. Their action on salt does not yet have traction in the real world -- but it does pertain to it.
What the New York Times tells us today, no surprise to those of us who have worked directly with severely obese patients over the years, is that failure overtakes the show participants, too. Those of us in these trenches have known all along that though challenging, weight loss is rarely the rate-limiting problem.
Public health is all about doing the best we can for actual people, not a statistical and anonymous horde that exists nowhere outside of actuarial tables. That doesn't always align with the greatest profits for some large corporation. In fact, it almost never does, because of the time horizons involved.