Why has no one asked what they were doing in that cloud in the first place? If they had not gone into cloud, the pitots would not have iced up.
Why did they not take vectors like other aircraft?
Was the radar display turned up so they could see it? - there are two parts to the ND display knob and I often see crews in the sim turn on the radar but leave it on min brightness so you cannot see it.
Something simple Airbus can do is to set the minimum brightness still visible.