See, I would have had some faith in Snowbird, since she's half-goddess, half-mortal. Given Snowbird a chance to fight for her soul. Rather than go, "Oh, I see what you're about to do - I am going to make this really difficult choice, that's going to take two seconds - and put a hole through one of my teammates and kill her! Bwhahaha! I showed you, Pestilence!"
But, as we have established, people have different views of what makes a good and bad story. I thought Heather, who was the warm heart, who calmed the Savage Wolverine, had by this point, become entirely too blood thirsty and entirely too willing to sacrifice her own teammates, no matter the costs and consequences. (And the fact that it was Snowbird, was a very big, personal blow to me, as she and Shaman are probably my favorites on the team!)