I have not read the book but printed out their high resolution apple and stuck it on my and my mother-in-law's fridge doors.
I don't care too much about the theory behind since I can make informed guesses from various free sources and experimenting on myself.
Yes, they recommend quite some "safe starches" but look again at the apple shaped into a ying-yang. If you drew a vertical axis along the apple and choose a point on this axis, it would tell you how much in proportion you should eat starches-plant foods vs fat-meat-animal foods. Seen in this way, you can conclude that it leaves room for both types of extreme: high starch low animal food diets and high animal food and low starch diets.