Despite the bewildering thoughts causing Moku to cough up blood, he believed it to be the real fact. Therefore, it can be explained that the anomaly and the main factor behind all this were the orc race itself, not just Moku alone.
Perhaps his true role was merely to act as a catalyst to expedite the orc race's discovery of using dragon prana. Even if he did not exist, the orc race would eventually find a way to evolve into asuras, but it would require a slightly longer process.
"Moku, why the distant look?" Nedira asked, bringing him back from his reverie.
Moku turned to his wife and was reminded of Tam's face. If he hadn't been born in this world, Tam might have been one of the "hobgoblin" mothers.