He's being hailed as a "hero" in Kuwaiti media and by the BDS Arabic account. As of this writing, I have not seen any other coverage of this story.
I also cannot find the bracket that he reproduces here. The Los Angeles championships aren't until March and I didn't see them issue any brackets.
As far as I can tell, the IBJFF does not have any written rules about penalizing athletes who refuse to compete. But it might be worth Tweeting them about this.