Worst plot.Bad decisions!

Rating: 4/10 (13 May 2017)

Seriously this is worst than Prometheus.When someone is spending billions of dollars to send thousands of people to colonize a particular planet how could they change their decision to land in some other planet just like that. How did they miss that planet colonized by engineers which is 7 years closer to earth as compared to original destined planet i.e. origae ? Most of the trailers scenes are also missing in the movie too.
Plot is also too predictable.It just happened that planet's atmospheric condition is exactly same as Earth!.Are you kidding? The ship's AI(Mother) was able to identify the alien but why it could not detect that its David not Walter?