Its a small country so there may not be much of an order.
Other countries have had problems just doing plain distribution.
Toss in a pecking order in the DR is could just be a big complication.
The government wants to end the pandemic and the fastest most straightforward way is give if away free to everyone.
Get those tourist dollars coming in.
First country to vaccinate their population will be the first visited by the tourists.
RD has been receiving tourists for several months now.