I do think emet would work way more if he had doubts and being troubled over killing so many people and effectively doing the same thing too other worlds as has happened with the ancients. Like he knows what he does is utterly vile and evil but it’s the only way for zoodiarc too bring back all his friends and people he cared about. His smug and holier than thou attitude plus his quote “I do not consider you to be truly alive. Ergo, I will not be guilty of murder if I kill you.” is the most villain thing you can do and then thing people feel bad about him. Like they had even the chance too make him light hearted and not a tsundere in Elpis and explain his shitty ass behavior in the future with this. Like from mildly grumpy too mega grumpy isn’t a good character arc.