Yes, 9-0 is unanimous. If this case was decided 9-0 I would agree it was unanimous. Unfortunately for your delicate little feelings, this case was decided 5-4 along partisan lines. The only thing that was even close to 9-0 was a small technicality. On the matter of whether the class could be certified, and on the matter of whether the plaintiffs had any sort of case, the decision was 5-4. Get over it, since when does it matter to you what the libs think when your side wins?