Ah, this is not strictly true. Genesis Chapter 1: In the beginning God created the heaven and the earth. Now the earth was unformed and void, and darkness was upon the face of the deep; and the spirit of God hovered over the face of the waters. And God said: 'Let there be light.' And there was light. Note, light was formed before the plants. Verse 11: And God said: 'Let the earth put forth grass, herb yielding seed, and fruit-tree bearing fruit after its kind, wherein is the seed thereof, upon the earth.' And it was so. And the earth brought forth grass, herb yielding seed after its kind, and tree bearing fruit, wherein is the seed thereof, after its kind; and God saw that it was good. And there was evening and there was morning, a third day. And God said: 'Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days and years; and let them be for lights in the firmament of the heaven to give light upon the earth.' And it was so. And God made the two great lights: the greater light to rule the day, and the lesser light to rule the night; and the stars. And God set them in the firmament of the heaven to give light upon the earth, and to rule over the day and over the night, and to divide the light from the darkness; and God saw that it was good. And there was evening and there was morning, a fourth day...

Funny you noted that AR. The “Creation Book” by the Watchtower Bible and Tract Society, published in 1985, brought out a beautiful quote regarding Moses accuracy in describing the exact order of the creation of the universe and the earth. Read the Genesis account again in Genesis Chapters 1 and 2, and then consider: “The science of mathematical probability offers striking proof that the Genesis creation account must have come from a source with knowledge of the events. The account lists 10 major stages in this order: (1) a beginning; (2) a primitive earth in darkness and enshrouded in heavy gases and water; (3) light; (4) an expanse or atmosphere; (5) large areas of dry land; (6) land plants; (7) sun, moon and stars discernible in the expanse, and seasons beginning; (8) sea monsters and flying creatures; (9) wild and tame beasts, mammals; (10) man. Science agrees that these stages occurred in this general order. What are the chances that the writer of Genesis just guessed this order? The same as if you picked at random the numbers 1 to 10 from a box, and drew them in consecutive order. The chances of doing this on your first try are 1 in 3,628,800! So, to say the writer just happened to list the foregoing events in the right order without getting the facts from somewhere is not realistic.”

Because it is a story book? Because the story has elements borrowed from even earlier, Babylonian creation stories? Because it was never meant to be taken so literally? Because doing so only opens the whole book up to ridicule, obscuring whatever truths may actually nestle inside it? Lots of reasons...