Back to Noctus being revived, in addition to all the good reasons here, I also think it would be logical for him to be revived (If the queen had the opportunity to); for why would the queen not revive a valued commander, while she revives random humans (and even a spriggat!) on the main's team. She does this without hesitation, so why should she think twice about reviving a shadowling? If I had thought Noctus had failed me, I wouldn't just have him killed, he would still have uses, and if I was really displeased with him, I would punish him by having him serve under the human who defeated him ;)