I don't understand the distinction you're making between Homebrew and other non-profit OSS orgs: Homebrew has a documented governance structure[1] and is hosted under a non-profit foundation.

The App Store exists primarily to distribute proprietary applications. Homebrew exists primarily to distribute open source packages. Comparing the two (and Apple's justified focus on sandboxing, etc.) feels like a mismatch.

[1]: https://docs.brew.sh/Homebrew-Governance