Give Trey all of Darnold's reps in the last preseason game, it's not enough to change the facts on the ground. Sam is running the offense better than Trey. Best case scenario for Trey is that he's QB2 and hoping Brock gets injured, which isn't saving his career. They gave Darnold those snaps because he has the least experience in this offense, and after what happened last season, it would be malpractice for us to not treat the QB position like a meritocracy.
We were a SB contending team, why would we throw that away to test out Trey? Jimmy was on his way out, but there was no rush, he was the best QB on a win-now roster.
Kyle and Lynch are bozos because they bought a lemon and should have known better, but they did try and make it work. Trey was the undisputed QB1 rolling into his second year. Trey has never shown any success or potential in a non-QB run offense, so I don't blame Kyle for trying to replicate that and put him in a familiar offense.