I thought bundling was bad and only evil folks like M$ did it.

Bundling framework and/or libs in the IDE just complicates things. Maybe you want to use a newer or older version of the library or something else altogether. I still go out and download apache-derby instead of using JavaDB which comes with the SDK. Also if an IDE came automatically with apache commons libs.. I'd still remove it and add a newly downloaded one cos the one from the IDE may be out of date.

Even though it might be more likely that I would use a bundled library or framework, I'd still prefer it to be downloaded only when/if I needed it.

I prefer putting in things for myself because prebundled libraries tend to make problems if you want to use another (compatible) version. Remembering big problems with JAXB in Netbeans, that drived me nuts.