Jingtai's command signaled Chen Yuan to cease his attack. In fact, he had already been ready to stop, believing that leaving Yang Yuanqing half-dead was punishment enough.
Should he have really taken a life, the consequences would have been unpredictable.
It wasn't that he didn't want to; it was that he couldn't.
At least in front of Jingtai, under the watchful eyes of the crowd, he couldn't do so. After all, before the fight began, they hadn't agreed to a fight to the death, and leaving his opponent half-dead had pretty much achieved his goal.
Unless Cao Zhengxian was willing to use Spiritual Objects for healing, without several months' time, Yang Yuanqing wouldn't possibly recover.
Frankly, Yang Yuanqing was very strong, certainly not just a novice True Core practitioner. He was an old-hand at the True Core level, and although he seemed young, he was actually nearing forty years old.