Australian mining moves > billion tonne per annum in W.Australia alone and that mass is blasted, excavated, moved by trucks, and then often by train, run through processing plants, stockpiled, excavated again (for loading to ship), and then shipped.
When looking at the energy costs of mining ... cars (in mining context) don't particularly factor in save as a rounding error.
The media hype being discussed is Rio / BHP / etc. big noting a couple of trucks and trains with no actual signs of further commitment being made.
Sans a plan to convert entire fleets at a site, then other sites, it's a real criticism to point out that there's little movement at a scale that matters.
Now, at least. To be revisited in 5 years, say.