Labelling is not an end in and of itself; it is a tool but not a miracle solution. The main objective of labelling is to provide information, and setting up a panel on nutrition is already an important step. Furthermore, indicating amounts of sodium should be mandatory. In this case, recording the amount of sodium in a pre-packaged food is mandatory. That is an important aspect of enabling consumers to make a choice.
I fully agree with you: labelling, in and of itself, is not a miracle solution. Labelling must be combined with other tools. Health claims will make it possible to identify products where efforts have been made to reduce sodium content. That is another useful aspect of labelling.