"Let play" is not so easy. This contradicts FIBA rules and the process is highly complicated. Last year he spoke glowingly about representing his country, that is the USA. In predraft chatting he tells a throng of journalists this idea playing for Australia, maybe there was an australian journalist nearby, I wasnt there. But matter of fact there is not such an official procedure at the moment moving, neither to FIBA, USAB or the australian federation. The facts are pure and simple, he is an american who played internationally for the USA, therefore if he really would like to represent Australia (I doubt this indeed) the procedure looks like this.
KI and the aussie federation have to sign up a petition to FIBA, if USAB says njet it is already over. Even if all the parties agree, FIBA has to conclude that the breach of statue is in the best interest of basketball. If the Kiwis argue that with such a move they lose the balance of power they would have a point. The matter Olajuwon 1996 was an 4-year struggle with the highest political powers involved. That is the simple truth.