Sorry I think my phrasing was not great. The goal of CT was not to make staged distrust of a CA possible (that's just a happy coincidence). It was to make it p

Sorry I think my phrasing was not great. The goal of CT was not to make staged distrust of a CA possible (that's just a happy coincidence). It was to make it possible to detect CAs misissuing certificates, which includes CAs back dating certificates.