I loved that scene. In fact I love the whole film with its quirks. I really don't get all the griping. I found the film was a bit of a let-down in theatres but then as I watched it over and over again, it just got better with every watching.
It has to be understood that it is a "Hollywood Monster Movie". There had to be some dumb moments to go along with expectations of this sort of film, but overall it was exactly what an Alien side-quell should have been. It tells a separate story and keeps me as an Alien fan interested. I was not a member of any boards at the time so I have no idea what sort of info people had going in, but for me the Engineers being Human was a terrific shock, and a very welcome plot twist. Prometheus rocks.