Khomeini made his intentions known in France for years before he went back to Iran. He simply prepared the ground in Iran prior to his arrival and the people were ready to accept him. I think the Shahlet is thinking along the same lines but I seriously question whether the people of Iran would welcome the scion of one dictator to replace another.
"would welcome the scion of one dictator to replace another".
Are you really comparing the reign of the late Shah with the rule of the Mullahs in the same breath? Is that how you see the two?
That would be like comparing the Queen of England with Pol Pot of Cambodia!
I think I can encapsulate such comments with "the American Right gets it wrong and the Left doesn't get it at all!"