Hi Jun,
Aikiweb contains quite a few listings for Indonesian aikido dojos...so the answer is yes, aikido has proliferated in Indonesia. Unfortunately, I have only visited one other aikido dojo in the town I'm at, and as such am unable to offer much in the way of commentary with regards to Indonesian aikido in general.
Frankly, I wouldn't be taking aikido up were it not for the martial rigor and skill displayed by my sensei, Atsushi Yamada. In my previous incarnation as a martial artist, I tended to think of aikido as, well, too soft (in a namby-pamby way). I was shown the error of my ways. And besides, breaking baseball bats with my shin will become more difficult as I age, and is not a good way to treat sports equipment.
At any rate, martial rigor is not all there is to aikido, of course. Aikido to me can be an excellent tool for the cultivation of empathy. And we certainly need more empathy in this world...
Regards,
John Kuo