Kraft's own cheese powder is incredibly bland by comparison with Annie's. Whenever I happen to eat Kraft mac and cheese, I am surprised by how flavorless it is, but maybe some people like it that way.
It's sort of like the loudness trick for headphones.
Even for sweet foods, adding a pinch of salt is sometimes an insane flavor-enhancer. It doesn't just work on caramel.
I have already proved that US Kit Kats (made by Reese/Hershey) have almost no chocolate smell compared to Euro Kit Kats (made by Nestlé) which have a rich cocoa aroma.