Oho, this arc has gotten interesting. I was so sure Soo-Won would meet with Yona and Hak to settle the dispute since he is against taking lives unnecessarily. I guess Soo-Won knows what his father has inlicted upon the people and the wrath it brought huh
As much as I think king Il was a bad king, Yu-hon wouldn't be that much better, sure he would have made Kouka stronger, but more enemies would have risen from his methods. King Il was the one who put out those fires that Yu-hon spread.