What kills me most about discorporated Aziraphale appearing to Crowley (aside from, well, everything) is that Aziraphale doesn’t really have control over where he goes. In the book, at least, we see him hop all around the globe from host to host until finally he gets himself to London. He seems to have no idea who he is going to or where. The only deciding factor seems to be that they’re all individuals who are spiritually open in some way- shamans and preachers and the like. Madame Tracy might be more or less conning people but she still puts herself in a position where possession makes sense.
ANYWAY, this is all to say that I think this is why Aziraphale is able to find Crowley right away despite his lack of control and even ability to see his surroundings. Because he’s sort of cast about, otherwise, and doesn’t really know where he is but he knows he’s found Crowley. Crowley might not be open to the spiritual (any more than any demon or angel would be by nature) but I think every fiber of his being is open to Aziraphale. In that moment, there was absolutely nothing he wanted more than Aziraphale to still be with him. That had to be like a beacon, like the universe’s strongest magnet, drawing Aziraphale to the one person most open to him.
So, yeah, whether or not that was the intent, that’s why I die a little every time I watch that scene. Aziraphale flings himself back to Earth on the faith that it will work out and that he’ll find someone in time to help him avert the Apocalypse. What he finds immediately is Crowley, every bit of him aching for his angel’s return.