Does it matter that much if it is correct or not? Some amount of people are eating healthier because of it. That's a good thing, right? Whether that is due to a

Does it matter that much if it is correct or not? Some amount of people are eating healthier because of it. That's a good thing, right? Whether that is due to a link to history or coincidence it seems like a good thing. To me "is it doing something we know is bad" seems like something that would be useful to know. I don't care so much about "is it historically correct". I'd gladly trade that for even 100 people eating better. Pragmatically, it seems like a decent diet, so let's figure out how to get more people to eat healthier instead?