The authors of traditional books on history depicted the Genpei (the Minamoto clan and the Taira clan) as a conflict between coequal military powers (especially in the battle at Ikuta Forest by Noriyori) in "Azuma Kagami" and "Heike Monogatari"; thus, the depiction of the conflict in "Gyokuyo" invalidated a point of view on the battle based upon "Azuma Kagami" and "Heike Monogatari."
源平が互角の兵力で衝突したよう（特に範頼の生田の森の戦い）に記述がされている従来の『吾妻鏡』『平家物語』を基にした合戦観が全く崩されてしまう。