The linked page simply talks about Using a simpler compilation toolchain than the Vue standard one (Webpack), at the cost of it supporting fewer features. It's

The linked page simply talks about Using a simpler compilation toolchain than the Vue standard one (Webpack), at the cost of it supporting fewer features. It's sort of like the argument of using clang vs GCC: it assumes you already are using C for your project, just talking about which compiler. Actually a better example would be autotools vs CMake.