Emma did murder people and a horse. But at least she didn't telepathically control her teammates in order for Cable to be right about something. That's basically Hope's defense for mind-controlling her teammates. She would rather control their minds than have Cable's death be (somehow) meaningless. Yeah, I don't get it either. If Cable was wrong about Hope being special he was wrong about everything?

Emma did do some mind-control to protect Generation X from Onslaught, but that was more protecting them from a boring crossover and an enemy they couldn't fight than anything else.