The Arab League has always been dominated by Egypt,: it is based there, and its president is by default an Egyptian national (Egypt having the largest population). Thus, it has mirrored to a large extent Egyptian politics, and so when the Egyptian population rules, you will see this in the Arab league. When Syria's dictatorship butchers its own people, the Egyptian people will most certainly side with the victims of atrocity, unlike ofcourse the kind of stances Mubarak regime's took.
And here comes the condemnation from the Arab league:
"The Arab League has publicly criticised the violence in Syria for the first time, saying Arab states are "angry and actively monitoring" the crisis.The comments from the outgoing secretary general, Amr Moussa, drew a bitter response from Damascus. Syria's representative at the league described them as "unbalanced and politically motivated"."