I think that sounds like a good thing.
If anybody doesn't, have you ever actually looked at the laws enforced by the ICC and how the judges and prosecutors are appointed? And who has the authority to change those laws? Just because you call something the International Criminal Court doesn't mean that it isn't a ridiculous Kangaroo court.
Without going into a detailed review, the laws all look so vague that any participant in any kind of conflict could be changed with a huge pile of crimes, depending on the whim of the judges and prosecutors. Most sane legal systems require that any law be defined strictly enough that an individual can always be sure whether an act he is planning to commit does or does not violate the law, and I think this body of laws is far, far away from that point.
As for the governing bodies, it seems the primary authority is a body in which every member nation has a single representative and a single vote (the Assembly of States Parties). Uh yeah, I bet about 10 seconds after this court was given any real power, the dictatorships of the world would horse-trade enough votes to change anybody who was politically unpopular with them with a huge pile of crimes whose definition is so vague that it's impossible to know whether you've committed them or to defend against the accusation of them.