This might be my own baggage around confinement but the decision to lock Jack in the box and what the box means-practically-is far too cruel and far too intense for the emotions the characters are going through. It is especially so because of Dean's ultimate decision in this season. It makes very little emotional or practical logic that the Winchesters-Sam especially-would be willing to condemn Jack to a fate worse than death.
Second, the let's make angels! Thing never ever goes anywhere of note and I think the main problem of the episode could have been smoothed over if the was more material dramatizing the debate between the Winchesters vis-a-vis the box.
Second, the let's make angels! Thing never ever goes anywhere of note and I think the main problem of the episode could have been smoothed over if the was more material dramatizing the debate between the Winchesters vis-a-vis the box.