Sanyo RAI, who was a Confucianist (a Confucian scholar of the Edo period), criticized Emperor Nimmyo for not accepting Prince Tsunesada's previous frequent resignations from the position of Crown Prince, but he removed the prince and let his own son be enthroned as the crown prince when the incident occurred ("Nihon Seiki").
江戸時代の儒学者・頼山陽は、天皇が恒貞親王が度々皇太子を辞退した際には受け付けず、事件にかこつけてこれを廃して自分の実子を立てたことを厳しく非難している（『日本政記』）。