Maybe Tynan means well when he picked out these 8 foods... but there's a bit of food snobbery in the analysis. The post starts off with how Whole Foods is the only place outside of your home to get "healthy food"... Any supermarket that sells produce--things that come from the ground or a tree and not from a factory is good for you..even potatoes.
So if anything in regards to this post, eating healthy is a blessing and being able to inform instead of ridicule in a condescending tone is probably a better way to get this information out. I agree a lot of the science is left out in this post..there's plenty of science on why rice is inherently bad for humans in certain contexts (glucose sensitivity if someones metabolism is already messed up).
At the end of the day, no one is going to be ill from eating any of these things in moderation. Unfortunately, the standard American Diet is not one of moderation. There's way too much lunch righteousness going on with "healthy people- ie.Tynan" vs "the rest of them who don't know any better".
You are what you eat but being condescending towards what other people put in their mouths is a very ego-centric existence drawing on feelings of superiority and exclusion of those who might have not have access to resources/knowledge to make the same dietary choices.