There has been presented a number of theories that explain this phenomena, from the known difficulty that the artistic architect´s side has to deal with technology, the fact that senior architects are info excluded, to the blue collar connotation that comes with the use of computers.
They are all wrong!
Here is the explanation, plain and simple: "Architects do it with models".
It is highly understandable that Architects don't want to “do it” with Virtual Models, or even worse, Architects don't want to do it with Building Information Models.
Go blame them...