DD
IMHO It was and remains appropriate. However at no point in the past or in the future will it be the only vision, nor the only one to be appropriate.
Every partner selling services, peer organisations promoting bodies of knowledge focused on aspects of the whole and end user organisation will have areas of agreement, extension and rejection.
Bloody well done for putting a straw man up that other people can tilt at 🙂
An old proverb “If you don’t know how to do something just start doing it. Pretty soon 10 people who know less than you do will come along to tell you what you’re doing wrong” 🙂
2⅝¢