There is a stress in renting too. You never know if your landlord might want to change things resulting in a request for you to move out. eg he wants relatives to have the apartment, etc.
I don't think home ownership is a decision to be made lightly and I disagree with the idea presented in the article that it should be done to make money, but there are definitely numerous benefits and the idea of a mortgage being somehow evil just because it's debt is extreme. As another commenter mentioned, debt is a tool which can be used poorly or wisely.