The real problem becomes the issue of what zipfile depends on, which complicates bootstrapping. I mean things could go as far as to write a script that takes in anchor points in the stdlib and freezes all code they depend on, but that seems like potential overkill and executable bloat.

But something needs to happen as zipimporter has major shortcomings thanks to to its re-implementation of zip handling (e.g. no ZIP64 support, etc.). Plus no one ever wants to touch that code.