I'm glad to hear the government had some common sense for a change on the nutrition label.
I agree with some of the changes they made, especially to serving sizes. A candy bar that was labeled as 1 1/2 servings wasn't likely to be only 2/3 eaten in a single sitting.
But much of the information is still relatively useless for cooking. A serving of flour is 1/4 cup (around 29 grams) which generally has 3, 4, or 5 grams of protein. You can differentiate between really soft flours, like a cake flour, and really hard ones with that information (which you probably already knew), but that's about all.