Not only is it not bad for you, it's essential for a healthy diet.

It appears to me that refined-corn and sugar are the two worst culprits for poor nutrition.

Edit: Eater always cracks me up with their alarmist headlines and fascination with shoe-horning identity politics into articles. Not to be taken seriously IMO.

True, but I shouldn't be maxing out my daily intake on a quarter loaf of French bread.

In the context of the American diet, yes, yes it is.

Most people's diet contains way too much salt, and therefore it is completely honest to say that salt is "bad for you".

Too much of anything can be bad for you.

Too little of anything can be bad for you. By definition.

And furthermore, the vast majority of people in the USA are not having too little salt.

The vast majority of them have way way too much salt in their diet, therefore it is perfectly honest to say that high sodium content in food in the USA is "bad for you", because we live in a context where too much salt is the problem, and not too little.

Arsenic? Cyanide? Mercury?

They're being pedantic (probably to highlight the complete lack of useful information provided by the post they responded to.) "Too little" means "not enough" and "not enough" is not enough by definition. There's no such thing as "not enough" of those things because none is enough.