No quantum computing will make magic money more advanced... And if you would have read the article you would have seen that the mining power comes from volcanoes. All you have to do is read.
The aim is probably to attract more investors to enhance the standard of living in the country. More jobs and development are likely to come up for the locals. The government is taking every possible step to make people use bitcoins. They recently transferred funds worth $30 to those who have digital wallets. I am curiously waiting for the results because not every resident of the country seems to be happy about it.