I'm focused on ultraprocessed foods. Many people ask "how are highly processed foods different than regular whole foods". Thus I provide a deeper reason for ultraprocessed foods to be bad for you. They are often supplemented with fillers that are evidenced to be detrimental to health in a variety of ways.
I read the article and understand that many explanations were offered. However, none of them were more substantial than one study put together. In my opinion, the article was fairly high level and simply provided a brief overview of competing theories on obesity and processed foods.
I understand your point in that focusing on any "one thing" that allegedly drives poor health is a fool's errand, but you can't discount the facts. I also acknowledge that I could be wrong, ALA could have nothing to do with this, and we should quit all meats for maximum health. From what I have seen, the data has shown otherwise. But again, please prove me wrong.