I don't think environmentalists hugging trees/blocking pipelines have anything to do with the reasons SG/IN are building coal:
"Coal maintains a strong foothold in (Southeast Asia's) projected consumption, not only because it is markedly cheaper than natural gas, but also because coal projects are in many cases easier to pursue as they do not require the capital-intensive infrastructure associated with gas," the International Energy Agency said this week in its outlook for Southeast Asia.
As usual, it's about short-term cost reduction/profit maximization. Visit Indonesia now folks!