1) actually making Hello, World pages that will go anywhere near a user
2) Using React in Hello, World pages (which they don't make)
3) Using Reactpack to build the React-based Hello World pages they aren't making
1) Whatever you're making, you're starting out with 177 modules minimum if you use React + Reactpack.
2) See 1.
Moreover, you can presumably globally install this, so it can cover every React-based project you need to build.
What is an acceptable number of modules?
My Visual Studio install is easily at least 4GB, yet this doesn't matter to the end user as the packages produced are about 6MB total