That was the Lord's way of saying that the old nation of Babylon, that had held Israel captive at one time, had seen its last days. LOL!
As an aside, I can see where you are going here too - but in fact, even in the allegorical, this didn't happen. For the Babylonian god system, the 'stars of heaven and the constellations thereof, the sun, and the moon' were not dimmed or caused to fail, as the very same pantheon can be seen all the way up through Egypt, Assyria, Babylon, Phoenicia, Greece, Rome, and even to this day - The Babylonian Mystery Religion is by no means gone...
So IMHO, Using the allegorical the way it must certainly be used, this prophecy did not occur. Continuing the Babylonian prophecy into Is 14 makes it altogether unlikely.
>>>Using the allegorical the way it must certainly be used, this prophecy did not occur.<<<
Since this burden came during the reign of King Ahaz (Ch 14,) long before the fall of Babylon, I am having difficulty following your reasoning.
Philip