They used to have the best model and it was highly accurate. I think they’ve just run low on resources and had some key people leave, and that’s resulted in it now being really out of date and (because the mining industry has evolved so fast) quite inaccurate.

I thing also, part of the issue is that it is academia, and as a result they are one step removed from the way the industry has evolved, and up-to-the-minute data.