I can't access the link
106 karma · joined July 3, 2016
I think it is not. I would say Blender is at professional level.
It is not like GIMP or Inkscape that I can hardly call them professional.
Many Blender users coming from other 3D sofware often said that Blender UI is weird and stop them from using it further. I guess it is a matter of habit.
I think the need to replace the content of "How to Use It" section since they do have real documentation.