Adam and Eve blew it. God knew they would. That’s why He sent His only begotten Son, Jesus. Believe on Him and you will be saved. Plain and simple.
I think God decided to send His Son in response to the serpent's deception causing Adam and Eve to sin.
Genesis 3:14 And the Lord God said unto the serpent, Because thou hast done this, thou art cursed above all cattle, and above every beast of the field; upon thy belly shalt thou go, and dust shalt thou eat all the days of thy life:
15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.
No creation, no blowing it?
Or, just no creation of Lucifer?
Were either possible in your opinion? Just wondering.
I believe that a universe in which God knew Adam and Eve would blow it, but God stopped it through uncreating Lucifer or not creating him was possible and no more rigging of events than this universe is..