SnowKomodo
Deity
The issue with Vietnam is there is little to no reason to think it would be them instead, and it seems more wishful thinking than anything else. In the case of Indonesia they at least have a huge ammount of community support, and long term community support (which is the key of course). Either would be fine choices of course, but Indonesia certainly seem the more likely.
But hasn't Vietnam's long-term support been just like Indonesia?