Well, that's a duh. I did not read/clicked on the link to read it, but that's just a given, anything you do outside of photography is not photography. but purchasing new gear is certainly close related and plays an important role! Without any gear, one would not be able to pursuit photography!
What you say is true, though maybe you should have read the article. That you need a camera to take a picture is not what's being said. What is being said is that for camera companies to stay in business they need to continuously bring out new cameras and lenses and to convince photographers that they need this new gear. Try reading the article.