I wouldn't count it as betrayal, more of them just being stupid and ignoring "orders"...🧐
Death would be a bit harsh as punishment for what they did, but they do deserve some type of punishment.👺
my personal choice would be to make them into a servant or slave workforce...they don´t have to be trustworthy and reliable to do menial tasks 👹
why waste good manpower when you can just threaten them with death and get them to work for you ☠