Any consideration given as to why the Genesis fable would include the fact that the gods lied while Satan told the truth?
Earlier in Genesis, of course. And it was Satan who lied saying Eve would not die but become like God:
Genesis 3:4,5
At this the serpent said to the woman: “You certainly will not die.
+ 5 For God knows that in the very day you eat from it, your eyes will be opened and you will be like God, knowing good and bad.”
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The latter is worded wrong but is not an outright lie - Eve was choosing what was good and bad for herself rather than accepting God's standard of what was good and what was bad. In this case, Eve knew God had said it was bad to eat from that tree but she decided eating of the tree was good.
Genesis 3:6,7
Consequently, the woman saw that the tree was good for food and that it was something desirable to the eyes, yes, the tree was pleasing to look at. So she began taking of its fruit and eating it.
+ Afterward, she also gave some to her husband when he was with her, and he began eating it.
+ 7 Then the eyes of both of them were opened, and they realized that they were naked. So they sewed fig leaves together and made loin coverings for themselves.
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The lie Satan told is similar to a lie most religions including Christendom tell when saying that when a person dies he has not actually died but has become a spirit like God, who is a spirit - i.e. the false doctrine of the immortality of the soul. Ezekiel 18:4,20 clearly states the soul dies.