All that matters is countries having fair targets, and meeting those targets.
Countries are free to meet their emissions reductions targets how they like, including buying cheap coal from Australia, planes from US, and cars from Germany.
Australia's coal industry provides few jobs, is heavily government subsidized (either explicitly or through direct infrastructure funding), pays little to no tax, and creates environmental harm that the majority of the electorate disagree with.
[Sorry HN: I know I should be supporting this with annotations but am time pressed today.]
Regional Queenslanders don't want to end up like the old coal mining towns of the UK, which still have not recovered from the mine closures in 1980s. https://www.theguardian.com/society/2017/aug/26/blighted-coa...
I'm not saying coal is morally defensible, but this is democracy in action.