He sounds like someone that hasn't done any web dev at large scale. 90% of the web devs at my place of work just fulfill business needs day in and day out. Around 10% actually spend any time messing with the tooling. Sure, when you don't know what you're doing and you're working on a smaller project, you can get bogged down with the tooling aspect. But in every job I've worked with a healthy engineering culture, the tooling side of web dev is invisible to most of the devs to the point where they wouldn't know how to make a config change if they wanted. They just build shit.