As they agreed, Hubris let them train. He was busy with things Kiro refused to get himself involved in, which was paperwork. He wasn't dumb or anything, he just didn't like sitting around pushing papers. He didn't get this game to do all that, his body liked to be active so that's what he did in here.
The spectres he was training were children, so they were naive and small-minded. There were things they didn't understand, things like why they wanted to go to war with a king. To them, a king meant someone good, overlooking and taking care of people.
They had no concept of bad, just good. Kiro had to teach them from scratch, he hated breaking their innocent spirits but this needed to be done. Not just for the mission they have, but also for their safety.
