This was my topmost question too. The report very cleanly omits any and all mentions of SAML signing certificates. Solar Winds was the first known incident to

This was my topmost question too. The report very cleanly omits any and all mentions of SAML signing certificates. Solar Winds was the first known incident to escalate to so called "Golden SAML" attack. If the support staff had access to signing certificates, then that would open the door to a wide-scale exploitation of Okta's clients. A shower of Golden SAMLs, if you like.