The problem is this was done is a public school, funded by taxpayer money. Although most of its population are muslim, Indonesia is not an islamic country (exce

The problem is this was done is a public school, funded by taxpayer money. Although most of its population are muslim, Indonesia is not an islamic country (except Aceh, which is a special region with its own laws and autonomous government), so the public schools must accommodate every religion recognized by the country (there are 6 of them). If it's happening in a private school (e.g. islamic boarding schools or catholic schools), no one would bat an eye.