Not to make a big deal about something that's clearly not meant to be a big deal but I was surprised in the episode with Ramzi and his sister that they speak Hebrew with each other. Sort of understandable in the supermarket, but I would have expected them to switch to Arabic when having a heart to heart. (Ramzi's mother did speak to him in Arabic when she arrives on the scene.)
Is there anything to this more than just making it easier for Hebrew speakers to follow?