Yes, but it's not like we didn't know who the people were that should (maybe) avoid salt and that it didn't matter to anyone else. If she didn't bother to consult with at least one doctor or dietician that's absolutely her fault. Gluten-free was also a fad there for a while (for people that didn't actually have celiac disease), should she have done that too?
"Low salt" was a fad in the 2010's, it cropped up everywhere. It's not particularly her fault for going with the mainstream of the time.