I think it's unnecessary for Japanese government to do exactly what Iceland said.
It's not like an easy thing that you can do if you want to. It could cost a lot of money.
But considering everything, having geothermal energy might be a good thing for long term.
On the other hand, Iceland could be right about everything they said about Japan's geothermal
energy, but I don't think they have to put that on news on their national day.