It shows their implicit racist assumptions and views that Chinese are expendable subhuman swarming insects or like Orcs from Lord of the Rings, and are treated as expendable chaff even by their own government. It also excuses any defeats by saying the other side “cheated” by just throwing human waves rather than “genuinely” winning through superior skill and technology. It is the same sort of sour grapes thinking used by the defeated Confederacy from the American Civil War, so that they could cling to the myth of being the superior soldier.
The idea China could overcome them in both quality and quantity is something unthinkable for them because it would mean admitting they were wrong about being superior.