I did not accuse you of being oversimplified, and I'm sorry that wasn't clear. I said that beliefs like “salt is bad for you” are not so much myths as they are oversimplified, since indeed there is (for example) a very significant population with salt-sensitive hypertension. The thing that is oversimplified is the (broadly incorrect) belief held by many people, the belief you are arguing against. Since it contains an important element of truth, it is dishonest to simply call it a “myth”.
I have little doubt that these beliefs remain persistent. My thesis there is not that they aren't persistent; it is that they probably aren't the “top 19”, as the headline claims, presumably falsely.
I don't expect you to change your headline-writing practices, since clearly the dishonest strategy that produced that headline was chosen intentionally, but I do want to make sure that you don't misunderstand my critique. I think it's kind of a shame that you're throwing away credibility with dishonest headlines, intrusive interstitial newsletter ads, and so on, when the articles themselves are so valuable. But I'm fighting my own battles, not yours.