In his "A basic research on the Hojo clan in the Kamakura period" as well as "The rise and fall of the Hojo clan in the Kamakura period," Takayuki OKUDOMI explains the incident based on descriptions in "Horyakukanki," although he withholds the judgment of whether the descriptions were true or not.
奥富敬之の『鎌倉北条氏の基礎的研究』でも『鎌倉北条氏の興亡』でも真偽のほどは保留しながらも、事件は『保暦間記』に沿って説明している。