Which ancestral diet and in what area is what it comes to. Yeah, eaton's stuff is the basis for the cordain version of paleo. The criticism of the cordain approach based on the eaton research has been that they seem to assume that our ancestors did not make use of the fat in this "lean meat" or just threw away the viceral fat....which is a wasteful behavior not actually seen in observed cultures. This could bump the overall macro percentages significantly considering the nutrient/caloric density of fat. No doubt Eaton is one of the big dawgs as far as paleo research goes though.
BTW...the 150g carb load is actually 30% carbs for a 2000 calorie diet. Pretty darn close really. I think a slightly lower carb load for myself works well because I'm not nearly as active as a human was 50-100,000 years ago. Robb Wolfe is fond of saying eat carbs to fuel your level of activity.