I had a chat to Bob Dwyer about this - he stayed over at Chez Gagger in London last month.
He said he respects Robbie as a coach and as per the article never pointed the finger in Dingo's direction, but rather the assistants'.
He said that when he'd recently chatted to RD and JW, and outlined what he thought was basically going wrong with the Wallabies (lack of contest at the tackle by getting beyond the ball, and quick recycling) both Dingo and Jim agreed. They said "that's exactly what we're trying to get them to do". Bob's take was that they were either just trying to placate him (which he didn't think was the case) or there were clearly other issues in getting these core elements translated, leading Bob to think the assistant coaches weren't cutting it and/or something's happening, or not happening, from the players.