Why does the PLA object to Japan’s drone plans for its southern islands?

The People’s Liberation Army (PLA) has criticized Japan's plan to deploy satellite-aided drones to its southwestern islands near Taiwan, labeling it a “dangerous gamble.” In a commentary by the PLA Daily, the Chinese military's mouthpiece, it was stated that Japan's Self-Defence Force claims to be building a multilayered coastal defense system, but the equipment is described as having a “distinct offensive nature.” The commentary emphasized that what Japan calls a “shield” is, in reality, a “spear.”