Might be so. Ask yourself, "would it matter to what God is telling us in Genesis?" Would everything be falsified if it was a metaphorical darkness rather than a literal one?
Of course it matters. The thing about the way Moses writes, is at times what he writes can be both literal and metaphoric. Other things just defy the norm.
according to Genesis 1, a day includes evening and morning. Don’t confuse that with light being called day, and darkness being called night because night is the start of a new day.
Take Passover for example. A day starts at sunset, so already you can’t think in terms of midnight to midnight. In Jewish thought, evening leads into sunset and night is the beginning of the day. This is both literal and metaphoric. Evening and morning are not the start and ending points for a “day”. So what is Moses emphasizing by highlighting evening and morning in Genesis 1?
In Exodus 12:6-8, Moses instructs the Israelites to kill the Passover lamb in the evening (end of the day). Yet he instructs them to eat it that same night (beginning of the day). Physically, this is impossible because a day does not have two nights.
To this day Jews consider the 14th of Nissan to have two nights. In other words, the night of the 15th is shared with the 14th and is realized both as literal and metaphoric.
The first of the two creation stories in Genesis sounds a great deal like the Sumerian creation story, which involved water and darkness as symbols of chaos from which order is established by the gods.
And that’s not by accident. Noah settled in the Sumerian region after the flood and was alive during the same time as Abram. Although the Sumerian writings are the oldest writings to date, their alphabet derived from Hebrew origin.
Like the flood story, which is also very similar to the Sumerian version, God takes the story and sets it to reject the idea of many gods who are often crabby and amoral, presenting a single omnipotent God Who is entirely good and at the same time, just and merciful.
There are two stories of Gilgamesh. An early writing and a later writing. In the earlier version a King was mistreating his subjects and the Gods intercede. It is within these writings that we find the words El (singular) and Elohim (plural) which Moses uses in his writings.
Coming full circle, do you think it’s possible that “day 1 and 2” could have had both a literal and metaphoric light and darkness?