Just had an interesting thought. Is it possible that each black hole represents the existence of intelligence? Could it be that the exponential expansion of the universe that we witness is actually because we're sinking deeper and deeper into our own black hole, so nothing that we do here can possibly reach the external universe?
That's neat
Anyways
Seems like a security precaution to me. If you want to assassinate him but he's standing around other people who look a lot like him it's going to be much harder.