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.
We can hope for meaningful food supply-wide sodium reduction 50 years after the scientific evidence for the need had become convincing. In the meantime, the subtle but devastating effects of high-sodium diets will continue to take the lives of tens of thousands of people and waste billions of dollars annually.