Spaz's charts are from a presentation by Paul Bevilaqua in 2009.
However, all the graphics in that presentation are earlier than 2009, I would guess around 2002, so they may no longer be reliable.
FA - Since the questions to any AusDND rep would be along the lines of "You told us these were the facts in 2002-10, and these are the facts today, would you care to explain the discrepancy?" I would call the decision to not appear "diplomatic jaundice".
Bogdan can, at least, present himself as part of the clean-up team. There has been no similar awakening in Australia.