The new government food pyramid matters because it affects major government food programs and student lunches. Otherwise, not many people dutifully follow the government dietary recommendations. There have been several changes over time and in 2011 they got rid of the pyramid and replaced it with a plate, which makes sense because we more often eat food on a plate than in pyramid measurements.
Butter and cheese in the highest tier doesn’t make sense. They are okay in moderation, but are not good in high amounts, and the highest tier implies you should eat a lot of it. Not only is eating too much of them bad, they are easy to eat a whole lot of all at once, and are high in calories.
Whole grains are good! They shouldn’t be relegated below butter and cheese. Whole grains are hard to overeat, are associated with better health, and are per-calorie better for you than butter and cheese. Butter and cheese being in a higher tier than whole grains is backwards.
The new pyramid promoting: protein, vegetables, minimally processed food, and healthy fats is good.