Earlier quoted context omitted.
Setting up Webpack and Babel isn't so bad, these days, and you really only have to do it one time and then you can reuse the setup in other projects. Plus, once you've done it, Typescript is easy to slot in, and that by itself makes the effort worthwhile.
I can highly recommend you watching this talk: https://github.com/matthiasn/talk-transcripts/blob/master/Hi... It explains very well why is something being easy shouldn't be the main metric, when choosing some technology. In this case you are advocating to pull in webpack (28MB, 348 packages from 210 contributors), @babel/core (12MB, 54 packages from 60 contributors), typescript (53MB, 11 packages, 4 contributors), t…
Typescript is a choice independent from anything else.
There are alternatives to Webpack, none of which have gained traction, possibly because developers appreciate other features that webpack provides out of the box.
But, you are complaining about the developer tools, why? The source code size of emacs/vscode/vi is just as relevant, or the size of the linter, or the complexity of whatever build environment is used to deploy code to production.
All of those require upgrading and maintenance, and occasionally have bugs!