I agree, evidence may exist and if it does, I hope to see it.

The parent poster, in contrast, simply gave a sarcastic "Yep, case closed" and then, with no context, placed a link to the sugar scandal. Effectively, as I read it, "Yeah sure... but what about that thing with sugar?".

I'm not even arguing that the stance is wrong. Your middle paragraph, while holding a similar view, actually invites discussion around the topic. Hand-waving to an article with a sarcastic remark is just a deflection. Proposing an equivalence between two disparate situations with nothing behind it.

The other portion of my comment just suggests that you should have strong evidence (or argument that the strong evidence exists) when making strong claims, and that if you're a non-expert in the field you need to demonstrate why your non-expert opinion is equivalent to that of many experts. I'm not even sure how that is controversial, but apparently it is.