For people like Sludge, probably not, as he's desperate for there to be no God. I get that.
It's interesting that back in the 1990's, two leading UFO reseachers (one in Europe and one in the USA) looked at the current evidence including images, videos and the testimonies of thousands of individuals, and both came to the same conclusion, that the majority of genuine testimonies and images were angelic in origin. It should also be noted that both these guys were agnostics and had no particular interest in validating the Bible.
Those who are familiar with the Bible will remember how fallen angels got involved in human affairs the last time the world was threatened (by God) with global extinction, which led to the appearance nephilim; Goliath was one example of these giant human-like creations.