Not sure why the programme did not mention cabin crew.Have not seen it.
According to reports there were 3 cabin crew on board, 2 at the front and 1 at the rear.The ones at the front opened the doors and evacuated passengers on to the slide rafts.The crew member at the back opened her door and did the same.Whilst this was going on a passenger panicked and opened a door.Not knowing the procedures this turned out not to be a good idea as that let in water into the cabin. The crew member then had to attempt to get that door shut.
You can read all this on wikipaedia.
Still not sure why there was no mention on the programme you watched.