The process of the upper limit of a realm rising was not a small or quick event. It would not start one minute and cease the next. It required a thorough upgrade to each and every individual law of a realm, and then a subsequent feedback from the laws to the very fabric of the realm itself.
That meant that, for example, once the space laws of the realm were strengthened, the actual space of the realm also had to undergo a strengthening process. Since this upgrade usually happened over long periods of time, that shift was gradual.
In this case, since the upgrade happened so quickly, the subsequent feedback would be condensed into as short a period as possible without compromising stability. The existence of Primordial Sunlight meant that the stability of the entire realm had greatly increased, so the upgrades could take place at an unbelievable pace which is why so many Dao Lords were shocked.
