The intuition that Śrīla Prabhupāda’s words are perfect, without defect, even when not explicitly backed by śāstra is definitely the correct understanding. When a devotee is perfect in Kṛṣṇa consciousness, like Śrīla Prabhupāda, he not only perfectly sees Kṛṣṇa, but also perfectly sees Kṛṣṇa’s material energies as well. A pure devotee has none of the four defects of conditioned souls. Kṛṣṇadāsa Kavirāja Gosvāmī says: bhrama, pramāda, vipralipsā, karaṇāpāṭava, ārṣa-vijña-vākye nāhi doṣa ei saba, “Mistakes, illusions, cheating and defective perception do not occur in the sayings of the authoritative sages.”
On page 46 of his book, Kaunteya Prabhu states that we should accept Śrīla Prabhupāda’s words as perfect whenever he is stating from the “original text” (śāstra), and not necessarily perfect (potentially mistaken) if the source of information is not based on the “original text.” And on page 408, Kaunteya also says that we will “never know to what extent the false information Srila Prabhupada received affected his views on women,” but Kaunteya appears to be certain that the extent is not “never.” Indeed, to even consider the possibility that Śrīla Prabhupāda’s views could be influenced by false information, one must necessarily presume that Śrīla Prabhupāda himself is a conditioned soul. This idea is at the heart of Kaunteya’s book.