This seems to be a thing for pretty much every food/nutritional category. I've decided for myself to just "ignore" the science since the definition of "healthy" seems to change so often. Instead I try to use common sense for picking my meals.

any nutrition advice that makes sweeping statements about entire macronutrients (protein/fat/carbohydrates) should be ignored and is mostly used to sell fad diets. "Carbohydrates" could be HFCS or leafy greens. "Fats" could be shortening or avocado. The nutrition of the individual food is much more important than the macronutrients.