“Armageddon” is also thrown around a lot these days to mean a catastrophic event. But these terms derive from Biblical accounts and are often used to describe things that people fear will bring about the end of the world as we know it. “Apocalypse” is often used interchangeably with “Armageddon” and the end-time tribulation. You can take it to mean what you want. It certainly is not off point here.
It’s off point to the writer of this article and what his article is saying and what Newt Gingrich is saying.