I have run into this myself and was surprised unpack_archive didn't support wheels. I would like to see support added, and don't mind doing the work myself.

That said, I can see there being an issue with the number of supported zip-based formats ballooning: Java JARs, Android APKs etc.
However, wheels have a use case for easily extracting them -- that's how they're installed. I can't see a use case for being able to *easily* extract other formats.

If there's no opposition I will start work on a PR.