A platoon level exercise involving infantry is hardly awesome. In fact IIRC there is a post on a similar level exercise between India and PRC, in China - now that was significant politically given their history of hostility.

Indonesia has had little international military co-operation for a long time, the only exception I am aware of is limited military engagement with Australia; there has been significant Australian Federal Police engagement with Indonesia for many years.

Not sure whether Indonesia contributes or has contributed to UN missions either, although I recollect a presence in Cambodia many years ago. Ah, just checked they currently have just under 2k committed (police & military) and mainly with UNIFIL.

If this tiny step develops, especially with naval exercises then I'd be impressed.