Would this have been a better ending?
She escapes and makes it to the farm house. The old lady was an actor. Emmet is alive (fake gun and blood pack.)
She says 'what's this all about?' and they say 'we needed to see if you could escape, and you did.You're worthy, Michelle, you get your pass on the ark.'
Yup, they're a crazy cult who wanted to find people with survival skills.