With so many imported parts its understandable the reluctance to order in large number.
Well in the past Army is well known for their bulk order purchasing for any major weapon system no matter if it is local Made or import, either newly build or Second hand units like AMX 13, V150, Anoa 2, M101, S60, Bell 412, Bo 105, Saracen families and so on.
I don't expect they degraded themselves into Ngeteng culture just like other branches lately especially under Jokowi administration