There's nothing new here. European airlines generally prohibit filming the activities of their employees, regardless of technology. In fact, most of them (unlike U.S.-based airlines) try to anonymize their employees. They don't wear name tags, for example.
I've had this be a problem when I was trying to capture a FA's photo while disembarking the aircraft after he rudely chastised me for using the bathroom "too many times" due to a bladder condition.
I've had this be a problem when I was trying to capture a FA's photo while disembarking the aircraft after he rudely chastised me for using the bathroom "too many times" due to a bladder condition.