Well, she had a faux-epiphany 'cause you know it's never going to last. She technically had the "I'm THE Slayer. I'm the only one. I am the law!" epiphany again where being the Slayer is meaningful to her... which will last all of ten minutes before she forgets and starts complaining about it again. I just hope that this one lasts a bit longer than her "I will show you the world, shining, shimmering, splendid" faux-epiphany to Dawn.