These radical groups are a threat to the Monarchy, and so we should expect the Saudi Royals to be gainst them.
There is a large Saudi Hezbollah group in the eastern part of the country. They are dedicated to overthrowing the Monarchy and setting up an Iranian style "republic," (i.e., mullahcracy). Last I heard Saudi Hezbollah had about 10,000 members. They are under no illusions that Iran is pulling the strings behind all of this. The is why the Arabs may "protesteth too much," but in the end may be secretly glad the Israelis are dealing with this. None of the Sunni states in the region are real happy about the Iranian push to become the leaders of the Islamic world.
You are right.