Indeed. I was thinking about this, and would argue this should really not only exist... but be the only way extensions with this level of wide-sweeping access should be permitted to be published.

Chrome team, if they were security-focused, would not permit any closed source extensions which have access to all website data.

People don't seem to understand sometimes that if an extension has this sort of access, you need to be able to trust your browser extensions as much as you trust your browser itself.