Richard Engle's only source for this is his driver. He is not leaving his hotel room. His driver said some dude in the crowd wants Shia rule, and he wants to run a story based on that, from his hotel room.
It may be true... but still what a crappy ass dick reporter he is. Engle speaks arabic. He could go down to the crowd himself, if he wasn't terrified of being strung up as a collaborator.