The author should've at least defined what kind of design was he talking about. Almost every person is a designer on daily basis, when we are cleaning our rooms, preparing a dish, or even when we are communicating with our peers. Unless we are copying everything and do everything as our friends are doing, then in fact we are in a design process. The difference comes in when a person is confident enough to write a cheque for his work that he and a client both think is a design. This distinction should've been clarified in the beginning of the article, or else we aren't even able to have a discussion about it.