In other materials, information of the fight between Muni and the Yoshioka in front of the shogun is not found, therefore, that anecdote might be a fabrication as well which Iori or someone came up with for enhancing the story by involving the shogun family.
同様に新免無二と吉岡家との足利義昭御前試合に関する逸話も他の史料になく、因縁を将軍家と絡めて描くことで物語性を高めるための創作である可能性を否定できない。