Thanks for sharing your experience with using HTML+CSS+JavaScript without third party tools. It seems that there are too few of us who believe simple web standards are enough to handle all our needs, however complex.

Coding everything from first principles is my favorite way to do things. I'm with you 100%, maybe even more, because I've also thrown away Webpack now that we have native ES modules in browsers. I don't bundle either, because HTTP/2 gives me continuous streaming.

Kudos!