We're eating way more salt than we used to 50 years ago. Forget about the hunter-gatherer days.
I call b.s. on this part. Read an old cookbook. It calls for no less salt than modern ones. In fact, it would be logical to make the argument that on average cookbooks call for less salt now because so many people are sodium conscious.
Furthermore, salt was used as a preservative for just about everything in many cultures. How can you assume we get more salt now other than to just say it? Ever eat salted cod after it's been reconstituted? How about chinese food in China? Neither lacks salt, believe me.
Just to be clear, I'm not saying too much salt is good. All I'm saying is that the assumption we get more now is flawed.
WITH THAT SAID, the ruling class really needs a wakeup call. They are not the parents of their constituents and we are not all minors. It's not their job to moderate anyone's salt intake, whether directly (table salt) or indirectly (chefs and manufacturers). These people are like overstimulated, power mad versions of my home owner's association. What a bunch of freaking do-gooders that think they know more than everyone else.
I can just see the day where we have to sneak table salt into our favorite resaurants. Maybe there will even be signs that say "no outside shakers allowed".