For this "third tier" sport (which is not in the Olympics nor Asian Games), it is common for athletes or federation to find their own funding. to compete. Although they can request funding from the Ministry of Youth and Sports, I think the ministry is just too focused to thr SEA Games preparation. Even some of thise SEA Games athletes haven't received funding so they can't compete elsewhere to test their skills...
It was the same case for Cali 2013, our powerlifters got left out because they couldn't find funding. While our Wushu athletes can go because the Federation president is very keen of this and use his own money to cover the cost.