"He's a fantastic dev who's built great systems, but I suspect he is not interested in these aspects of software" would have changed the entire tenor of the article.
This person doesn't need to be in the article at all and I had a lot of trouble getting past this section to the many reasonable points made after it.
Thanks for the feedback. I updated the language a bit to better reflect how that whole interaction went down, which was a playful chat between two seasoned devs with ~12 companies between them. I also removed the language that was being perceived as judgemental.