According to Osho, Krishna was never ignorant or imperfect because his awareness of his intrinsic wholeness was uninterrupted across lives. Ignorance is only forgetfulness, not a lack in being; everyone is already all-knowing at the core. Awakening is simple remembrance beyond time, so differences of 'sooner' or 'later' are peripheral, not real.
Krishna never forgot he was already whole; we forget, then wake up and remember.