Because he was an Egyptian court magician that led the Hebrews as they fled, then became an allegorical personification of the celestial horned God that rained fire and brimstone down on Earth, but the Hebrews that survived in Egypt considered themselves spared and therefore chosen by the most high El (Elohim) God of the Gods, so they wrote down what they saw but made up a bunch of details to reinforce their narrative.
Revelations describes the immutable ancestral fear that the end of days will happen (again).
There's not a chemtrail in sight today where I'm at, highly unusual.