Industrial design is not turning into an engineering profession. In fact I’d say just the opposite with more emphasis being placed on strategic design, ethnographic research, and how design overlaps with brand. I think the designers who move to much toward engineering will be commoditized. Designers who move more toward strategic insights levering a business will continue to elevate. If you do have an engineering bent, it is better to be focused on problem solving difficult challenges and not on draft angles and DFM. DFM work is nice but ultimately can be commoditized, some times at the factory level, unless it is a totally new product/category. One a new category DFM work can be at a premium, but it doesn’t happen every day.