When he considered this thought for a moment, it finally solidified the reason even his Dimensional Fabric had to consume a Universe Will in order to be able to evolve to the Third Dimension.
Rowan would be doing something that everyone else thought would be impossible, and he would be stealing a Dimension from Chaos itself.
It was not hard for him to see the root of this ability when he looked deep into his powers. The Chaos Engine that allowed him to harvest Worlds was an ability given to him by Chaos himself, and after Rowan wiped away his Will, this ability no longer had any barriers stopping it from achieving its full potential.
This was what led to the surprising event where Rowan was going to be consuming a World Will and stealing a portion of Chaos's Dominion.