It's not a bad point, and historically theologians have speculated on this and related questions. And while we cannot-or should not- say that Adam had to sin, as if he lacked anything that might've precluded his disobedience, or that God wanted him to, we can know that God, obviously, deemed it worthwhile to create knowing that sin and evil would result from man's abuse of his free will, and that He could nonetheless bring an even greater good out of it. And one aspect of that greater good might be that man knows good and evil, by directly, viscerally, experiencing both in this brave new world that he was exiled into, where his own will reigns, so that he might gain the wisdom with the help of revelation and grace to choose the Good alone, ultimately acknowledging God's existence, goodness, trustworthiness, and love-rather than doubting all that-so that he might finally love Him in return, a love which produces obedience by its nature, the right way. Man needs to learn to doubt himself in order to learn of his need for God-and so begin to trust Him.
That's how it works, in worldly affairs as well. Talk is cheap. Action makes a lasting impact. God willingly suffered that abuse, for us, for those who sinned, for those who 'hated Him without reason'. The cross is a direct appeal to our sense of justice when we see that light was attempted to be snuffed out by darkness, as it can directly convict us of sin including the primary sin of wanting God dismissed from our lives, Adam's original sin.
It shows that God's love and mercy are greater than His anger-that His forgiveness is inexhaustible whether we accept and benefit by it or not. Again, that was God on the cross. Any appeasement was done for and by Himself-for our sake.