The early agriculturalists had another advantage: cereal grains are easier to store and preserve than wild hunter-gatherer foods, therefore providing protection against famine. Also, the article neglects a whole life style: pastoralism, and the benefits of domesticated livestock. It’s a lot easier to get protein if one has milk and meat produced right in the village, requiring no hunting. Domestic oxen provided power far beyond that of human beings, and horses gave mobility, making it easier to migrate in times of famine.
I believe that pastoralism is ignored for two reasons:
1)there is archaeological evidence that pastoral lifestyles came after farming and evolved as a way to exploit land that were marginal at best for grain crops.
2)The authors may have considered pastoralism another type or extension of farming (despite the long tradition of hostility between pastoralists and farmers).