Adam is a limited good being in a limited good setting. (because God chose “good”.) Adam was as free as a person could be (since freedom requires the ability to choose at least one evil…and the choice was not burdensome…but only a mere preference). Therefore, God made human freedom as delightful and easy as possible.
Now, here is something few consider…God’s influence on Adam’s free will…His presence and interaction seems “counter-balanced” by the tempter…Was that necessary for justice?
There are a variety of different perspectives that can be taken here. The perspective of the OP, for instance, takes the perspective of narrative. At the core of the story, there is a plot… this happened… then that… then the next thing, and so on and so on.
It is a historic perspective, and from it came the understanding of sacred history and the like. And like all historic discussions, counter-factuals become possible as points of discussion, for that is an aspect of time, and cause and effect.
For myself, my perspective focuses more on the social, and and the psychological and the anthropoogical.
*What is this story telling us about ourselves, who we are and our relationship to God and to each other? * These are the kinds of perspectives necessary to be able to understand what I am saying here.
Certainly in both the narrative perspective, and the anthropologic one, there will be limits. These are understandings from the human point of view, and we can only describe the aspect of the elephant in the dark room as our hands describe that elephant to our minds.
What is harder to grasp is that your perspective is not from the human point of view. What you in effect have taken is the point of view of God himself. The whole scroll of sacred history is laid out in front of you and the perspective of beginning and end, and then, now and next, are being regarded from a the point of absolute transcendence. Counter-factuals such as the OP cannot really be relevant to you, for all things that can be, have already been accounted for. Salvation exists for all possible choices in perfect plan of the Great I Am.
…
I am not sure if the Tempter is necessary for justice, but I am quite sure that without desire, and temptation, there could be no such thing as suffering.
And without suffering, compassion and pity and love cannot exist, not in a world with limits at any rate.