I fail to see that if God worked behind the scenes, so to speak, specifically to avoid any manipulation of the writer whatsoever, how one concludes that Yahweh would be being manipulative by intentionally avoiding any such manipulation?
Besides, don’t all Christians agree that this is what happened with Pilate and the crucifixion? That what Pilate et al did according to their own free choices was nevertheless according to God’s deliberate plan and foreknowledge? How exactly would that be any different?