Noah called forth an Absolute Vitalistic Clone of Extremity for himself as it simply had too many boons for him not to, with the path he had to take being extremely clear at this moment.
His main body could continue accumulating power and bringing its foundation towards a shocking level, but this didn't mean he couldn't utilize the feature of the Vitalistic Clone to usher forth a version of himself with a potent amount of power.
There were so many positives with it- the only negative being the fact that no more clones or reified sources could emerge from the Vitalistic Clone of Extremity as it moved by itself!
He wouldn't be able to call forth the Wrathful Quintessential Hyperversal Demon Emperor fused form or any other Quintessential Hyperversal Emperor form he could take with such a body as it had to rely purely on its base power.