Wrong. Chimera Ants came to the NGL cause they couldn't survive in the dark continent. Don Freecs has being living there for who knows how long. It doesn't matter how OP Meruem was, the calamities will be stronger and Don Freecs and the whoever makes it to the Dark Continent will have to have some serious power level gains to compete with the threats in that place. Chimera ants were just a tease of the Dark Continent.