Your question ignores the full story. You need to consider both Old and New Testament teachings.
Genesis never said God made Adam perfect. Interestingly enough, Genesis never says much about the cause of the fallen angels, even though satan’s trickery is introduced as the cause of the fall of man. satan is just “there”.
The full, complete and perfect story isn’t really revealed until Mary and Jesus come on the scene in the New Testament. The Old Testament sets the stage for the New Testament. And, it is through the New Testament that mankind learns to perfectly address the problems seen in the Old Testament. Or - in other words - we know through the Saints, man sees God only in part, but that perfection is possible through following the completely fulfilled teachings in the New Testament.
What’s ultimately the most perfect, then, would be for man to deliberately choose to Love God.
The first man was simply incomplete.
Our God, Jesus, is the One who completes and fulfills this within us.
I dont see how it could be any other way.