Let me put it this way. If NFG believed the fuller set of 2nd-core-half samples would look quite a bit better, than the limited set in the Nov5 QA press release, NFG would have found a way to avoid a SIX WEEK SIT IN CUSTOMS that today's press release IMO implies.
IMO, NFG's behavior implies what common sense would IMO tell you: that log-log plot in the Nov 5th press release is about right. NFG may have to nearly halve the grades, from what their press releases initially claimed.
Again, I have NO evidence that Aussie customs didn't sit on the samples. It just doesn't make sense that Aussie customs would, nor does it make sense that NFG would not have explicitly stated (rather than hinted) that that was the cause for the delay.