This was always one of the things that bothered me about Prometheus - all these extra temples/structures (plus however many others that were likely there as well we didn't see), but Holloway is all up in arms that the very first one they landed at (seemingly) didn't have what he was looking for, and Shaw and David just flee right off to the Engineers' homeworld after instead of investigating LV-223's other facilities.
Would have preferred it to be established that the temple they went to was the only installation on the planet, if there were no plans to do anything with the other ones.