I am very happy to see Singapore and Malaysia in this list, I think it is because of their active diplomacy. For example, Malaysia is one of the few countries with a favoured status with Cuba, its citizens are not required to have a visa or Tourist Card to enter Cuba. Malaysia maintains an Embassy in Havana as does Cuba in Kuala Lumpur.
Japan, South Korea, Singapore and Malaysia , a nice quartet. The other members are expected EU and AUS/USA/CANADA/NZ
It is interesting to look at the least powerful passport to hold. India is not in the list, but its neighbours Pakistan and Bangladesh as well as Nepal and Sri Lanka fall in. Apart from South Sudan and Ethiopia, all the other countries are also in the list of failed countries and have seen sectarian violence.