As I wrote the above two paragraphs, I realised I sound like a grumpy person.
Famous internet startups, though, made many people believe that the way they were building software was the way to build software. You needed all these extra tools. They needed all these additional tools to scale up, but most companies started adopting these tools from ground zero, adding a few weeks/months to the development process.
Maybe we should get back to starting small. No build process, single or multiple JS files, simple deployment process and look at adding this to the stack as we face challenges scaling up. Get back to enjoying building software rather than spending time debugging a tool that you could do without at the early stages of development.
There is no great art without passion.