Alien: Covenant - What Does The Ending Really Mean?
9. Weyland-Yutani Continues To Learn Absolutely Nothing From Its Missions
Rather unfortunately, almost every plot advancement in the Alien movies occurs thanks to someone being an unfeasible idiot. Prometheus suffered from that pretty badly, and Covenant follows suit, with the colony crew splitting up, talking like horror movie cliches and generally not observing the universal truth that space is terrifying.
Instead of heeding the warning of the disappearance of the Prometheus and being doubly sensible, they visit an uncharted, uninvestigated planet they'd "missed" up to that point and then all proceed to be morons until they're all killed off. They deserve most of what happens to them.
But when you think about this mission and the disappearance of the Prometheus, and then consider that the Hadleys Hope colony programme still pushed ahead, it's hard not to accept that they're short-sighted idiots as well. They seem to wilfully ignore the evidence of the past, and forge ahead with plans to expand humanity's presence in the universe.
Covenant actually changes the main thrust of humanity's condition in the future: they aren't just corporate overlords seeking to remain the premier species in the galaxy, they're a dying breed, looking for new life because of the impending death of Earth. So at least Wu-Yu's idiocy can be explained a little more deeply as the desperate acts of a dying species.