Since the whole point of notarization is to give Apple the power to revoke malicious binaries on its system after-the-fact, this seems like it works by design, no? Apple quickly revoked the notarization once they were alerted of the malware. Otherwise Apple would have to scan every single binary submitted for notarization, which then puts a pretty large onus on them should anything slip through.
If Apple didn't want scan every binary submitted for notarization then they didn't need to introduce the notarization. They already had the means to revoke malicious binaries after-the-fact by revoking the corresponding developer certificate. The main difference with notarization is that it forces binaries to be submitted to Apple early for inspection in comparison with signing using developer certificate which happe…
That's a big hammer because it breaks everything that was ever signed with the certificate.