I really liked this movie , but one thing really bothers me...

Rating: 7/10 (25 December 2016)

I liked the setting, I loved the visuals, the story, even the movie in it self. I really like this movie... I'm not bothered by sci-fy stuff like fusion reactor (most likely possible) or human hibernation, or shield tech.
But there's one thing I hate (and have posted in regards to other films and books), if something is really smartly done, either by a person due to that person being smart, the tech involved being clever even far into sci-fy or any other thing involving smarts..
Smarts do only one mistake of each kind maybe twice, then they learn and do better.
So if you build a hyper automated spaceship and there are support systems for nearly everything, then the same people would have added a auto defrost and the ability to re-hibernate tech troubleshooters to be awakened if any error occurs, even if the system can auto fix systems, there are always possible that something else goes wrong or a sensor goes bad. So an added closed shielded system auto defrost a tech to check it out, when the tech has checked everything and verified it (by checking everything), they go back to sleep.
Doing anything else is idiotic to the nth degree and simple wouldn't be done.
I absolutely hate such "plot holes" (I know that most like I am the only one), but still I like the film..