I don't share your opinion.
And really the kind of analysis that guy did... Well, let's just say you could do it to every movie and 8 times out of 10 they'd come out as having flat out stupid, unrealistic and "failed" scenes. It's only a movie.
I thought you might
no doubt one can always find fault(s) with just about any movie but a great movie usually makes that process much more challenging. The problem with Prometheus is that those shortcoming are just too obvious, evident, prominent and hit you in the face like when you know what hits the fan

. These are traits typical of pop-corn flicks you'd expect Sly Stallone, and not Noomi Rapace, to be the one chasing those aliens
Personally, I think another director - Nolan maybe - would have pulled it off. The movie was kind of destined to fail with Ridely Scott at the helm the moment they attempted to inject some complexity in the plot outside of the "usual" Alien-franchise scenes and sequences. In the end, it was all just a chaotic mix of ideas, just about all of them good but none really seemed to be going anywhere. As for the execution, it was downright comical at times.