Aurelian's "Sky-Splitter" technique defines the very fabric of existence itself, disallowing any counteraction from lesser powers. Laura, despite her impressive telekinesis and flying abilities, operates within the bounds of the physical and magical realms. The ability to manipulate objects and opponents telekinetically doesn't match the absolute nature of Aurelian's power, which transcends these conventional limitations. When Aurelian initiates "Sky-Splitter," the universe ceases to resist his power, rendering Laura's defenses—physical and magical—irrelevant. Thus, Laura is unable to counter or evade the very grandiose nature of Aurelian's attack.