It's a great episode, and even stronger with the follow up in Lessons.
I had a thought about how they could have added something to the episode. What if they revealed a federation ship or some other advanced species was in orbit the whole time and decided not to help them due to the prime directive. This would give them more motivation for wanting to force an entire lifetime on a federation captain. And it could also plant the seeds of a plot where Picard challenges the prime directive and rewrites it.
I had a thought about how they could have added something to the episode. What if they revealed a federation ship or some other advanced species was in orbit the whole time and decided not to help them due to the prime directive. This would give them more motivation for wanting to force an entire lifetime on a federation captain. And it could also plant the seeds of a plot where Picard challenges the prime directive and rewrites it.