The Mechanical Race indeed achieved a lot.
The appearance of the Destruction and the ruthless sweep across the Mechanical Race's own planets left Chen Ming quite surprised.
They also indeed managed to clean up every planet that Chen Ming's Insect Race had invaded, and completely destroyed those where no Insect Race was found.
The Mechanical Race wouldn't gamble on the probability that the Insect Race hadn't successfully parasitized.
But what they did was not enough.
Upon discovering the movements of the Mechanical Race's Destruction, besides immediately initiating migration of the Insect Nest, Chen Ming also ordered all newly started breeding Insect Nests to deploy some Insect Race units to scatter and escape.
As long as a seed, an insect egg, is left behind, the entire Insect Nest can redevelop.
Therefore, even though the Destruction had already cleaned up the Insect Nests on all planets, not all of the Insect Race on those planets were killed.
