RW > first of all the article said that people who had covid likely develop antibodies for most of their life.
RW, I think I see why we disagree. This is a very complicated issue and changing over time. you seem to read popular articles where reporters digest research papers for us. This is often fine. When we know a lot about, say, flu, and a new article about flu comes out and adds one more item about it, a popular article would easily explain it to us. Here we have research papers done very quickly, often preprints, sometimes written in a hurry, that address multiple issues. Your healthline reporter will have to simplify to make it readable, even presuming he understood the article.
If you click on the actual research paper, you will see that the paper does not say what you just said. I tried to summarize what the paper say. I may be mistaken also.