This entire article is written with such profound misunderstanding of DevOps - perhaps one induced by vendor marketing - that it's effectively meaningless. Yes

This entire article is written with such profound misunderstanding of DevOps - perhaps one induced by vendor marketing - that it's effectively meaningless. Yes, developers should understand the operational environment a system runs in, and should be capable of advanced troubleshooting. But the rest of the post is simply tired screed about how "the old days" were better, despite the fact that they manifestly were not.