Sorry Blind expert but I can't agree with you
Search frequencies of such generally marginal brands like VectorWorks, Revit and Archicad (compared to for example Google itself) show how popular and important these brands are inside CAD/BIM involved community.
As you can see popularity of Revit is growing rapidly, Archicad stagnates and VW popularity is slowly decreasing ...
Of course, popularity not necessarily correlates with actual customer basis of selected brands, but the trends are relentless.
And Revitcity traffic vs VW techboard traffic is eloquent ...
I wonder whether Nemetschek group has some longterm strategy how to face Revit threat. (??Better interoperability between Allplan, VW and Archicad??)