I was surprised to see how WikiLeaks is not mentioned until late, as a passing mention in the context for the leaks. I’m not sure what having leakers not going

I was surprised to see how WikiLeaks is not mentioned until late, as a passing mention in the context for the leaks. I’m not sure what having leakers not going through WikiLeaks means: do we have to trust them on leaking everything? Is Assange personality getting in the way of the leaks? Are people who think they are savvy enough to hide their trace trying to go direct? Why would they take that risk?