I would disagree.

There's more to software than big corporate websites or massive FOSS projects. I've made tons of little one-html-file sites, like an inflation-adjusted income calculator, a scheduling app I've used every week for 4 years, a chemistry converter/calculator for a class I was in, even my resume site is just a single html file. Not only that but most of my published deno modules are nothing more than a main.js, a readme, and a gitignore (no package.json, no node_modules, no install step).

You don't need tests, and a linter, and babel, and tree shaking, and JSX, and typescript, and souce maps just to make a resume site, or an infographic, or a one-off internal dashboard, or a simple blog, or a restraunt menu. Modern ES http imports and modern JS tooling is enough.