I have equated the two in regards to what we have proof of and what we don't know or understand. You can't tell me why black holes exist any more than I can tell you why God exists. You have no more basis in science to explain black holes than I have to explain God. You can observe the evidence of black holes, just as I can observe the evidence of God. Neither of us can prove or disprove either one, or explain them with physics and science. We can speculate, we can educate guesses, but we can't know anything for absolute certain.
Let's get this straight, what you, Mott, Low, and other Atheists are trying to do, is apply an impossible standard that you can't meet yourself, on things that science doesn't have an explanation for. You see, from your personal perspective, you don't believe in God, therefore, you have established the criteria around your belief, and closed off any consideration of anything outside that belief. It's really no different than a religious person claiming the Earth is 6,000 years old, in spite of your evidence to the contrary... they simply dismiss your evidence, and build their criteria around what they believe to be true. This isn't how science functions. Science doesn't care that you are an Atheist who refuses to believe in God, and it doesn't stop functioning because you have drawn a conclusion without basis.