They acted like that shit was so important, but it was like super influenced by food lobbyists and misleading or whatever
Apparently in 2011 they changed it to "myplate" and I haven't heard anything about it since then
In Soviet north china the government lies about what a "healthy meal" is comprised of
You raise a good point that we know intuitively what whole foods are but not what food molecules are. A big ruse that the government experts played was changing simple language like "eat less red meat" to "choose foods that will limit your saturated fat intake", and now we're led on this wild ride of faith about saturated fats and what contains them.
In Defense Of Food is a really good book that examines trends like this. It's way longer than a Wikipedia article but will give you a much better overview/context.