They are using what I call "fake salt" - know a couple of people who were diagnosed with low salt levels and had to go on an IV drip
Potassium Pro® Potassium Chloride was developed to meet the needs of food manufacturers for replacement of sodium chloride, or to provide potassium enrichment in a wide range of food processing applications.
https://www.cargill.com/salt-in-perspective/potassium-pro-potassium-chloride
In food, potassium chloride is used to: enhance flavour, increase shelf life of foods, prevent food spoilage / bacterial growth, control pH of foods as well as reduce the sodium content of foods.
https://nutritionfornonnutritionists.com/2017/05/sodium-versus-potassium-whats-the-difference/
As potassium levels rise, sodium levels decrease and vice versa.
https://www.livestrong.com/article/49266-eliminate-salt-body-potassium/