Two nagging questions for an otherwise enjoyable ride

Rating: 8/10 (13 July 2017)

Good science fiction is never just about the technology, but how humans react to it, and this film presented what I felt were fascinating moral challenges met by both lead characters. But I have two nagging questions (POTENTIAL SPOILER)
1. A ship with 5000 passengers and only ONE medical pod?
2. At the end of the movie (nice to see Andy Garcia getting extra work) I would have expected to see kids, grand-kids, and potentially even great- grand-kids after 88 years.