cobweb,
I too share your view which you put it very beautifully: "Personally i think it is a highly resonant passage with positive implications and deserves to be followed more than much of the so called original material."
Since stories are the reflection of the time in which it is written, thus real as the history, there is no reason why any story should be shunned if it contains a moral. If I were to rate, I would say John 8:1-11 is the best of all the Bible stories because it contains multiple lessons such as:
--Examine yourself before you accuse another,
--What is next is what matters, not what has happened in the past
--Humans have the power over their body--if they want they can stop sinning ...
Thus the internal evidence in its favor is overwhelming.