It seems to me that the North Korean spokesman unintentionally took a swipe at North Korean targeting capabilities by saying their systems perform better against bigger targets:
North Korea warned Friday that U.S. forces stationed in South Korea are within striking range even if a key unit has moved to a new base located south of Seoul.
The U.S. 8th Army on Tuesday opened its new headquarters at the Camp Humphreys garrison in Pyeongtaek, a port city some 70 kilometers south of Seoul, after a decade of delay in the base relocation. It marked the end of the army’s 64-year presence at the Yongsan base in central Seoul.
North Korea’s military stationed at the truce village of Panmunjom said that regardless of the location, they cannot avoid North Korea’s ruthless firing.
“The larger the U.S. military base is, the more effectively our military hits targets,” a military spokesman was quoted as saying by the Korean Central News Agency (KCNA). (…….)
“If (the leadership) issues an order, our military will destroy the U.S. imperialists with salvos of firings,” the spokesman said. “If the U.S. sticks to reckless military confrontation despite our warning, it cannot avoid a miserable end.” [Yonhap]
You can read more at the link.