Whether he actually produced counterfeit or not is unknown, but there are some opinions vindicating Toi that he was framed up by those who were jealous of Toi as he was promoted from a mere townspeople to a goyo eshi at such young age, by abusing Toi's reproduction for study purpose acquired by some antique dealer.
洞意が実際に贋作を描いたかどうか真相は明らかではないが、習作として模写したものが古物商の手に渡り、町人の身分から若くして御用絵師に取り立てられた洞意に対する周囲の嫉妬により濡れ衣を着せられたのではないかと洞意を擁護する意見も存在する。