First, it's an Australian film in Lao language played by Lao and Thai 9 (Esan) actors.
Second, this is only the first step, meaning Australia has submitted this film to hollywood for further selection to be nominees by hollywood.
Each year, many countries (15 to 20 countries) select one film from their country for hollywood. The hollywood executive committee will then select a shortlist of 7 to 9 finalists. Only one of those will get the oscar.
So, the "rocket" is not even among the shortlist 7-9 films yet. We won't know until next February. I truly hope it is selected by the hollywood executive committee to be among the finalists.