It's a tightrope. Their are plenty of arguments to be made for having a large build system that makes development easier/more conventional. Their are also arguments to be made for minimalism and sticking to the fundamentals of the web with plain html/css/js.

What we can all agree on is that its good to at least have the CHOICE of development environments, build systems, and ecosystems. And I personally always fall back on: "this complexity is why I get paid more then most people".