We KNOW AutoCAD isn't a BIM tool. We KNOW it can't compete with Revit when it comes to holistic building documentation.
But then, Revit can't compete with AutoCAD when it comes to many CAD tasks!
Bashing AutoCAD is like telling your grandpa he is no longer needed because you have a brother now. It's just pointless (that is, unless you are trying to sell Revit to AutoCAD users...)
You wouldn't be here without your grandpa, would you?