So basically the former national coach Denny Trisjanto (who is also the husband of Lilies Handayani - the Seoul 1988 silver medalist), is the guy who trained Riau Ega and Choirunisa back when they're still junior athletes.
The issue started when the federation did a national coach assessment, where only top 3 coaches will train the athletes in the national team. Denny did not make the cut (ironically he was the one who really supported this coach assessment) and the two athletes refused to train with the new coach citing different coaching style. After some negotiations, the two parties kinda agreed to let Denny come back as long as his salary was not paid by the national federation. But the East Java Sport Commission and the East Java Archery did not allow their athletes to train with the national team. This prompted the national archery federation to dismiss the East Java Archery officials.
I didn't really know what happened after that, but they later held a national trials in April 2021 and decided that the top 3 athletes from each gender will be sent to this OQT in Paris. Riau Ega and Choirunisa earned their place from this trials. Meanwhile, Denny is still not allowed to train them but his wife is one of the new coach selected, so I guess there will be no more stupid infighting at least until Tokyo 2020.