Even a scholar of Myobodo needed permission by the Emperor's decree to lecture at home, and only SANUKI no Naganao in the early Heian Period, Tadasuke's great-grandfather (or grandfather) KOREMUNE no Naomoto, and Tadasuke that time were actually permitted to do this, which shows his social prestige was exceptional, as did the grant to Yoshimune in the previous year.
明法道の学者といえども自宅での講義には天皇の宣旨による許可が必要とされており、実際にこれを許されたのは平安前期の讃岐永直、允亮の曽祖父（祖父とも）である惟宗直本とこの時の允亮の3例のみであり、前年の令宗賜姓と並んで彼の社会的名声が破格のものであった事を示している。