I do not agree with many broad assumptions made in this paper. some of them are not true from a professional and scientific stand point.
talking about particular applications and not categories.
there is no new information.
figures do not help the text.
references not used in context to support arguments.
the paper is not well structured, I couldn't understand the main goal. The author didn't clarify if he had first hand his experience teaching design or CAD, however, there are strikingly bold statements regarding some odd teaching practice.