Responses

Without the death penalty, people would break rules very often until the town collapse.
Suggesting he go with the hounds wouldnt help much. 1st because as i said, people would break the rule with less hesitation as they know they can get away with it even if they get caight. Also, he could try to escape when sent as a Hound.
Point being, death penalty is best way to prevent rule breaking. And they all agreed on it.
Trying to be nicer increase the risk of the town collapse.
Holy moly... Never would I have thought there would be another "Negan", another apocalyptic world.. Same shit.... Although it could be worse in this scenario, since in The Walking Dead, Negan was "giving a lesson" to the people who fucked with his people first, regardless of the original reason......
But here, Guwon killed one of his own people for supplies.. Like... There are other ways he could be punished.. Send him on a supplies run with the hounds, at least he could be useful or die trying.