[Zopieux]

This only works up to a point. Some human needs some way of changing the publication setup in case something goes wrong or changes. What you're asking is blowing a proverbial e-fuse once the setup is known to be working. This is software, shit will go wrong at some point and you need a way to make changes.

[lrvick]

Of course, which is why all the (decent) tooling for this is provider agnostic, and provides documentation for multi-party-sharded backups so a quorum of maintainers can always re-assemble the key by hand for any reason if needed.