It is not clear that the 1260 days of Revelation 12:14 are actual days (as detailed in this article) or prophetic days being 1260 years. In his booklet "Who or What is the Prophetic Beast", Mr Armstrong wrote that the 1260 days represented a time from the setting up by Justinian, the "Imperial Restoration" of the Empire. Starting in 554 AD until the crushing of Napoleon in 1814, was the period of the healed Beast - a period of exactly 1260 years.

In business we had three rules
1. The customer is always right
2. If in doubt refer to Rule 1
3. God gave us one thing on this earth - TIME. Don't waste anybody else's time.

In order to understand Genesis 1 we need to consider: "ESV Num 12:8 With him (Moses) I speak mouth to mouth, clearly, and not in riddles, and he beholds the form of the LORD. Why then were you not afraid to speak against my servant Moses?" This means that Moses writings are not riddles to be interpreted. They are clear record of the word of God. In the text of this article: "Asked about the pope’s statement, Peter Stravinskas, editor of the 1991 Catholic Encyclopedia, said: ‘It’s essentially what Augustine was writing. He tells us that we should not interpret Genesis literally, and that it is poetic and theological language’ ” ( Time, international edition, Nov. 4, 1996, p. 59)." Does this infer that the UCG narrative of the creation is based on Augustine's writings as the narrative is not consistent with Genesis 1. A strnage situation for UCG to find itelf agreeing with Augustine that Genesis 1 should not be taken literally. You can see from TruthSeeker 7's comment that the UCG narrative leads to the acceptance of evolution.

The UCG creation narrative requires Christ to have been judged and cast out of heaven and down to the eaarth prior to day 1 of the record in Genesis 1. Here are verses that show quite clearly that Satan was not cast out of heaven nor down to the earth until after Christ's resurrection. The day before Christ was crucified he made a stand alone statement: "Joh 12:31 Now is the judgment of this world: now shall the prince of this world be cast out. " This is confirmed in: "Joh 14:30 Hereafter I will not talk much with you: for the prince of this world cometh, and hath nothing in me. " Further evidence is that Satan is judged after Christ's resurrection: "Joh 16:8 And when he (the comforter) is come, he will reprove the world of sin, and of righteousness, and of judgment: ……… Joh 16:11 Of judgment, because the prince of this world is judged." These verses coupled with the question "why did God create the expanse of the universe (the firmament and nothing else) on Day 2 of Moses history if it already existed as per the UCG narrative? None of these verses have been considered in arriving at the UCG creation narrative.

Mr Luecke wrote "There is nothing in the Bible to prohibit the existence of life-forms such as the dinosaurs in this pre-Adamic world." I am afraid that is not so. On day 2 of the creation week God created space. Gen 1:6  And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. 
Gen 1:7  And God made the firmament, and divided the waters which were under the firmament from the waters which were above the firmament: and it was so. 
On day 4 we see how big this space is, it is the volume of our universe. Gen 1:14  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. Gen 1:16  And God made two great lights; the greater light to rule the day, and the lesser light to rule the night: he made the stars also. 
So what we have is that the space of our universe was created on day 2. Hence there was no space around the earth on day1. No space equals no sun or moon in place and no atmosphere which in turn means no life.
A careful reading of the six creation days shows a definite chronological history of the creation.

On day 2 of the creation, God created the firmament. It follows that no firmament existed on day 1. The firmament is the volume of space that surrounds the earth. [Refer to day 4]. That being the case then there was no pre-existing possibility for life such as dinosaurs on the earth prior to day 1. Nor is there the possiblity of the stars or the sun or the moon being inplace prior to day 1.
When was or will Satan be cast out of heaven? Immediately prior to his sacrifice, Christ said Joh_12:31 Now is the judgment of this world; now will the ruler of this world be cast out. Satan was not cast out prior to Christ's death and resurrction. And, it follows that the war in heaven had not happened either. Sometime between Chist's resurrection and His return Satan is cast out.
The author of the blog is not correct when he wrote that all agree that 3. The universe and the earth are quite ancient—predating the world of man. This statement is purely science based. When God spoke to Moses it was plain language not in riddles as He did with the prophets. Num_12:8 With him I speak mouth to mouth, clearly, and not in riddles (ESV). Genesis 1 is an accurate history of the history of creation.