I agree that students should be reminded that violence is a last resort, but can't fathom why a significant portion of training time should be spent on it.
I'm unclear from your post what you mean by conflict avoidance; we learn a lot of physical techniques for de-escalation if an attack is already underway, but haven't much discussed what to do to avoid the initial situation. I think it's largely because my Sifu doesn't think we need it, being responsible adults (or about close as adult males ever get).
It may, of course, depend on the class in question. Some people may need reminding more than others.
War. It's fan-tastic!