Nonsense!
Amateur astronomers are very sophisticated techniques these days. There are many thousands of observers world wide.
Anything that would cause this kind of thing would be detected pretty quickly. These guys find little smudge ball comets and compete to name them all the time.
People take advantage of others ignorance all the time.
Surprised there isnt a book for sale too.
"For I dipt into the future, far as human eye could see, saw the Vision of the World, and all the wonder that would be" (Alfred Lord Tennyson)
the comets aren't even going in the same direction according to the SWAN images.
While this guy doesn't seem to be intentionally faking anything, I highly doubt his prediction will come true.
If it does, I am ready to see my Lord and get out of this disgusting world.