The Primordial Record revealed the secrets hidden in his body, but Rowan was surprised by how sparse it turned out to be. He suspected that many of his upgrades had been hidden or nonexistent until he reached a Third Dimensional form, before then the Primordial Record would have a hard time reading him.
Despite this setback, there were so many new changes he could see, and Rowan went through it within a brief moment.
He was a bit amused that the Primordial Record still referred to him as Rowan Kuranes, but with the error message and the threat of self-annihilation that it was showing him, it would seem the Singularity was struggling to collect all of Rowan's information.
Perhaps it had offered Rowan a chance to merge with it because the direction of a Dimensional Fabric was unprecedented.