Great perspective about understanding the business first and designing against the business but I don’t think this article will truly guide a designer to the right path because designing include many thing in itself.
As a designer the best way is to follow Start With Why, by ~ Simon Sinek.
- WHY YOU NEED TO DESIGN (As this article i think only this part is focused) In this section it includes why you are going to design something .
- HOW YOU WILL DESIGN IT : This part includes the coding, Photoshop etc all the tools that you are going to use.
- WHAT YOU WILL DESIGN: The end result, What you have finally come up with.
So, i think as a designer we must have all three core thing in mind. The purpose, The skill, and the result.