We must say it was natural for his father, the Cloistered Emperor Toba to mention that Goshirakawa didn't have what it takes to be an emperor. (We must consider that the Cloistered Emperor Toba ruled his cloistered government for twenty eight years, during three generations, from Emperor Sutoku, Konoe, through to Goshirakawa.)
これでは、父鳥羽法皇が後白河を皇位の器ではないとみなしたのは、当然と言える（無論、崇徳、近衛、後白河の3代28年に渡り鳥羽法皇が院政を敷いていた事を、考慮に入れねばならない）。