I realize that a lot of this season is to display how difficult it is to be the general in the war. You know that people are going to die and there's nothing you can do about it if you want to win.
But never in one of her long-winded speeches did Buffy ever explain the concept of giving your life for the cause. She knows that girls are going to die but she never talks to the girls about it. To let them know what they can do differently to make sure they're not one of the girls who dies. Or what it was like in her experience to give her life for the cause. She really did an intensely good job of separating herself and cutting herself off from the emotions because she didn't want to take that difficult road. It's very cold, selfish and characteristic of her the past few seasons.
That sounds harsh, but this episode was the perfect example in her treatment of Xander after he loses his eye. There was no connecting with him. There was no apology- though it wasn't her fault, I'm sure he would have appreciated the guesture. There was no comfort. There was no friendship. A truly strong leader knows how to balance the line between friendship and leadership.
I loved that they voted her out of her role at the end because she really does walk around like she has the right to be high and mighty, which has been Faith's position all the way back from when she first met Buffy.