I was thinking the same , however I just can not see the logic...

I was thinking the same , however I just can not see the logic of next drilling out the Observation deposit by the drill contractor , as to me although shallow the strip ratio is likely to be very high on that deposit given how tabular the ore body is (not much vertical depth to give tonnage )

One possibility would be a two stage pit , just to drill out to a very shallow 30 to 40meter depth , and then just mine down to 30 or 40 meters depth to reduce strip ratio and get some cashflow , then instead of doing a typical cut back do another infill drilling campaign from the pit floor for another excavation ?
Obviously the contractor knows 1000 times what I do , so would love to know where I am wrong and the grade does look exceptional at first glance .
What is good is from memory there is an ASX company that has its own CIL plant around Coolgardie that specialises in treating ore for juniors .