Essentially the Alliance is deposing Garrosh and nothing more. There are no demands of justice. I keep thinking about the scene in Return of the King:
"We shall have peace. We shall have peace when you answer for the burning of the Westfold, and the children that lie dead there. When the lives of the soldiers, whose bodies were hewn even as they lay dead against the Gates of the Hornburg are avenged! When you hang from a gibbet, for the sport of your own crows, we shall have peace."
We don't even get that attitude out of our leaders and I really don't feel like the Horde can lay the blame solely on Garrosh as easily as Rohan could lay it on Saruman.