I do not understand how the sources you provided result in the conclusion that 'fats should take higher priority' in a healthy diet. Much of the recent literature suggests that too much fat in the diet can result in a higher concentration of Intramyocellular Lipids (fat in the cells), this has been shown to increase insulin resistance (resulting in +ce instances of type 2 diabetes) [0].
In addition, the blue zone study (largest epidemiological study ever conducted on human health) concluded that diets rich in whole grains, starchy root vegetables, legumes, fruits, nuts and seeds proved to result in the lowest instances of diet related diseases (heart attach, stroke, diabetes, alzheimers) and was found to increase longevity.
"From this There is abundant evidence that increased levels of plasma lipids, predominantly free fatty acids (FFAs) and triglycerides, are causally involved in IR" (insulin resistance)
It was more an example of the fact that it's been in Canadian health groups' consideration for at least the past 7 years, as one of the posters above asserted that Canadian food groups still favoured carbohydrates and didn't have updated information on fats consumption.
To wit: there is a dramatic difference between the types of fats that should increase in our diets, versus the types of fats that should decrease.
It certainly isn't about reducing the proportion of whole grains, nuts, and seeds to the proportion of other sources of carbohydrates. If anything, when talking about fats, nuts and seeds are included in that argument. I spend more on my breads these days precisely because of this -- as part of my diet I require the increased iron and fats contents of whole-grain breads that include nuts and seeds. I've also taken to eating less of that bread, and spend more time snacking on nuts -- especially at work.
I can't however speak from the perspective of somebody with insulin issues or diabetes. I'm closer to anemic in my dietary needs.
In addition, the blue zone study (largest epidemiological study ever conducted on human health) concluded that diets rich in whole grains, starchy root vegetables, legumes, fruits, nuts and seeds proved to result in the lowest instances of diet related diseases (heart attach, stroke, diabetes, alzheimers) and was found to increase longevity.
"From this There is abundant evidence that increased levels of plasma lipids, predominantly free fatty acids (FFAs) and triglycerides, are causally involved in IR" (insulin resistance)
Sources: http://diabetes.diabetesjournals.org/content/52/1/138