I agree. it points the finger at Joran. Otherwise, wouldn't Joran have respond with a 'not just me' or 'you were there, too"? Instead he follows up with a comment regarding Satish running over a girl.
We don't know if Satish hit Natalee that night with the car or some other girl from another time. Joran may have some dirt on Satish from a previous incident. Maybe that's why he said Satish picked him up at the beach - thinking Satish will cover for him?
I had the same impression of Joran's comment about Satish hitting a girl. I didn't think he meant Natalee because of his wording. Art Wood says he thinks Natalee might have been run over. He doesn't reference this comment as part of his reasoning.