Ann: Spectacular high-grade gold results delivered from Link, page-17

At the very least, judging from the podcast interview, he has seen all the examples of "what not to do", mostly provided as a free learning lessons over the years from various iterations/failures at Wiluna, and his point is correct in that the failures were not all to do with refractory ore specifically, but were a series of poor decisions about the geology, metallurgy, plant selection, mine planning failures, development timelines, capital mis-allocations, lack of focus, management incompetence/short-termism and greed, unrealistic assumptions and a bit of bad luck from the gold price thrown in for good measure.