It is to do with their briefings.
To satisfy the RYR lawyers at the enquiry, the pilots must mention absolutely every single detail of their proposed approach in the briefing, including the words ' threat error management'! I kid you not. If they are to have any chance of a visual approach, that must be briefed separately in a 'double brief' which states where and when you will select flaps, gear etc.
All of this verbose briefing takes a very long time and must be on the CVR. They tend to focus on that and therefore the RT is missed and/or ignored. They also think the daft SOP calls take priority over RT and often 'step on' RT clearances or frequency changes.
Whenever they are not talking the aircraft into submission, they are pestering ATC for directs etc. A friend of mine at Eurocontrol tells me the new ATC guys are being trained to filter out extraeanous transmissions such as these and guess which airline is the major culprit.