I was reluctant to participate in that thread as I struggled to read the question/discussion without getting feeling of aggression/arrogance. But I usually dismiss that as written communication can be easily misconstrued or the author not realise the interpretation (meeting the a person face to face could be quite different).
That thread started out of "Please give practical examples of why it shouldn't in SAP_ALL and I"ll provide an example" to "Please validate my view that I should be able to add it based on the high level information I've told you about my landscape"
Any example given to answer the first question was dismissed as irrelevent to his system context. I found that worrying as too many assumptions would be made. If any other member comes to that thread they may pick out information that is valid in one context but not in another.
Oh well. It was quite animated
Regards
Colleen