Ignored or rejected is a technicality that does not matter in this case. Assuming that investors did not take into account the forecasted demand is stupid.

For the last 10 years, coal consumption has been roughly the same. Within last couple of years relationship between China and Australia reached low points, at least on surface, as low as vague of threats of military force. Yet, China still buys coal from Australia. Even if it peaks in couple of years, there is still a long way to go and this mine can remain profitable for a while. I don’t know if you read your own links, but right at the top ot says:

  Demand for thermal coal is set to decline after peaking in 2024 as coal-fueled power is increasingly replaced with renewables in Europe and the U.S.

   However, transitioning away from coal is complex and slow for countries like China and India, which account for 70% of global coal demand and are facing a steep rise in power demand, with a fairly new coal fleet ensuring affordable power.

   The success of meeting net zero goals for countries like China, India, and Indonesia hinges significantly on the future economic and technical feasibility of carbon capture, usage, and storage (CCUS) technology.

So yeah, basically the link you posted says that China is gonna be one of the biggest consumers of coal and it won’t change dramatically, unless some fundamental advances in energy tech.