The purpose of a commentary is to establish the meaning of a text in itself, not to claim the text for an idea that the commentator favours. That destroys the idea of commentary as an objective study. If texts have no meaning simply in themselves there is no meaning anywhere. If you are conscious of having sanitised a text you are not even pretending that the meaning of the text lies in the sanitised version but in the pre-sanitised version which you have chosen to reject so that the sanitising process can rake place.
The purpose of a commentary is to establish the meaning of a text in itself, not to claim the text for an idea that the commentator favours. That destroys the idea of commentary as an objective study. If texts have no meaning simply in themselves there is no meaning anywhere. If you are conscious of having sanitised a text you are not even pretending that the meaning of the text lies in the sanitised version but in the pre-sanitised version which you have chosen to reject so that the sanitising process can rake place.