you've brought up a moot point, the USDA knows that wasn't right, and hasn't used that pyramid for a few years now.
Moot, yet still valid since most people still follow it, whether or not usda has said anything. Many people still refer to it and have been taught to do so. Not there fault, but either way, it is still used by plenty people, especially in schools and doctor's offices I have been in. Just because usda has announced something, doesn't mean folks are doing the right thing all of a sudden. This thread is proof with 80-90% highly processed carbohydrate diets being the "norm." Same thing happens at restaurants with tons of pasta or bread, (wayyy too) small portion of veggies, moderate portion of lean meat if that, but "hey its good it says they use no Trans Fat!", hehe.