The move back towards small dependancy free JS libs, in combination with modern JS ES Modules, is absolutely brilliant.
I learnt web dev back in the late 90s by doing "view source", and was still learning about new things that way well over a decade later. If we can move back towards that, by not having a build step, it will be amazing for new devs starting out and learning new things.
Obviously larger apps, with many dependancies, will require all the incredible work thats gone into modern JS tooling, but for so many simpler (and not so simple) sites this process really does make sense.