Indonesian language could be enabled in the next recruiting window if there would be enough good translators and an excellent moderator to create a team for it, otherwise it will be discussed in the future.
The DaVinci & Utopian Staff evaluates all past and recent job applications and tries to enable new languages for each recruitment if it is possible to do so.
If the Indonesian team hasn't been created yet, it's probably because there are no valid members to create a team. If you want you could stimulate your peers and make the Indonesian community more active.
Anyway, you can talk with DaVinci & Utopian Staff and get more information on DaVinci Discord Server.
Robert Bira, DaVinci Staff.