Why is Miao Ying a god? Before discussing that, I want to talk about where the other Dragon Children fall short compared to her.
First, there's the Iron Dragon Zhao Ming, guilty of the sin of pride.
He was merely the governor of the western provinces, yet had the audacity to declare, "I'm no ordinary lord anymore." A Dragon Child that arrogant was never going to get far, and that's exactly what happened. After flattering CA to gain the title of Legendary Lord, his fortunes only went downhill, and in the end he faded into obscurity.
By comparison, the god is so humble. The story's failure in the Cathay trailer, and the ugly character models, are both acts of mercy from the god toward mortals. The god isn't deliberately trying to be cringe, but simply doesn't want to make the opposition despair with too flawless a performance, so he deliberately leaves himself open. It's laughable that some people don't understand the god's good intentions and even use these things to mock him. I advise you to know your place.
This book is all about absurd, hilarious nonsense. Just enjoy yourselves.