Recently I read (someplace I can't remember) that astronomers have identified a number of G-type stars that, like our Sun, were born from the same dust cloud billions of years ago. As near-identical twins of the Sun, they would share the same fortuitous mix of elements that has enabled life on our planet to emerge and flourish. They may also be similarly benign in terms of low variability. Unfortunately all of these stars have already moved far away from us. Too far, probably, for meaningful communication, let alone exchange of diplomatic missions
But remember, habitability does not guarantee life emerges, and even when it does, a series of highly improbable accidents must occur for a technological civilization to arise. So while Hanson's argument may be flawed, he could still turn out to be right.