Certainly the bushi who originated from the aristocrats such as genpeitokitsu (shortened expression of four major families) or the military arts as a technique can be explained, but the explanation of the shoryo as economic base which supported their samurai function or the master-subordinate relationship as a human base is too weak.
確かに源平藤橘といった貴族を起源とする武士や技術としての武芸については説明ができるが、彼らの職能を支える経済的基盤としての所領や人的基盤としての主従関係への説明が弱すぎる。