Why Would the Jordanians Be Shocked?

Dennis Prager examines Muslim reaction to the recent terror attacks in Jordan in this article. In it he writes,

"Now there is widespread condemnation of Zarqawi's terror in Jordan. There is even a fear that the name of Islam will suffer. Unfortunately, however, it is only because Zarqawi was foolish enough to massacre Jordanian civilians, and not confine his massacres to Iraqis and non-Arabs. What has aroused Arab voices against Zarqawi has nothing to do with the immorality of blowing up people celebrating at a wedding -- it has to do with the immorality of blowing up Muslims celebrating at a wedding."