It's a difference of interpretation imo. Others here understandably read it as meaning or suggesting an international focus, but others still (such as myself) read it as meaning a general focus (which is itself reinforced by the front page's own description).
Personally I do agree with OP & others here in preferring non-specific communities like politics or law to be open to international politics & law, but I'm not in a position to make that call. Also as noted, I don't think the admins are interested in intervening in communities so long as their moderators aren't abusing their positions nor abandoning their accounts & letting communities go unmoderated.