I'm confused, why is massacring an undead mystic and having them abandon and come back in protection not good? That's pretty much as good of a disable as you can get.
Also point of clarification, it was an undead province that came back out of VM and Genki Na Shinwa also had a avian come back at the same time. I can see coming back mid-war is a bit weird but what are you going to do, make them sit out if they are back from vacation? And since they were roughly the same size I don't think it affected much anyway.
But good fun war, good article, and I didn't get chained for once which was a nice change.