this is why i pin every dependency hash in my python projects. pip install --require-hashes with a locked requirements file catches exactly this, if the package hash changes unexpectedly the install fails. surprised this isn't the default in the npm ecosystem
Npm and the other JavaScript package managers do generate and check lockfiles with hashes by default. This was a new release, not a republishing of an old version (which isn’t possible on the npm registry anyway).
i wasn't aware npm lockfiles check hashes by default now. my concern is more about the initial install before a lockfile exists, like in CI from a fresh clone without a committed lockfile. but you're right, once the lockfile is there the hash mismatch would be caught.
