The Phoenix incident is completely explained by objects we know were in the sky at the time. The observers who saw them described them reasonably accurately; the fact that they were unable to immediately identify them is understandable, and no cause for criticism. It's one of the rare cases of a UFO sighting when it actually was possible to gather more information after the event, and discover exactly what it was they saw. What is not understandable, and is cause for criticism, is that there are still people insisting that something inexplicable occurred.
Scorpion's observation of a moving/stopping light is plausibly explained by Ryan O'Dine's suggestion of a plane making small course corrections so it was sometimes moving at an angle to him, and sometimes moving directly away. It's understandable that he never thought of that explanation (it wasn't one that occurred to me either off the top of my head, when I generated a list of some of the possible explanations). To confirm it would require obtaining the exact flight plans of all the planes that were in the sky at the time, which obviously isn't possible. But any reasonable person would accept that there is no good reason to think something inexplicable happened.
The problem is that many people who have what they consider inexplicable experiences seem to emotionally invest in their inexplicability, and become increasingly resistant to mundane explanations, however plausible. Even when an explanation which is beyond reasonable doubt is eventually found they refuse to accept it, and just go into denial. It's frustrating, but it seems to be human nature.
