Regarding Kuro stuff, honestly I just see him as a dumbass that just need to learn before he start spouting his mouth, and while he at the very least is taking steps to check on his mental health, it feels rather... weak of him to have this level of mental issue because of his lack of knowledge.
Also as a muslim ID, I can confirm both the fact that most ID here are pretty chill and yes, people there still do those women circumcision due to old-standing beliefs. Even the tourist managed to get it right, for once.
That said...
I find it baffling that you said ID folks are 'chill' and then insinuating that there would some internet-active minors that would try to deck him and force him to apologize over shit like that.
Like, okay, maybe there's possibility that happened, but I don't think the ID people are that autistic enough to go like that, especially since he already apologize/deleted his tweet in the first place.