I’m just going to come out and say what I’m thinking, here: these idiots in Alien: Covenant kind of encapsulate Niven/Pournelle’s old saying “Think of it as evolution in action.”
And I don’t believe I’m the only one thinking it, either. This entire escapade, from what I can tell, fell off of the stupid tree and hit every door down. You don’t walk onto the surface of a new world without wearing a spacesuit. Doesn’t matter if the air is breathable: in fact, you take double precautions in that case. Why? Oh, I don’t know: maybe because there’s a possibility that something in the ecosystem might be eager to take a bite out of you?
Yes, yes, it’s a horror movie. And it’s not like it’s satisfying that these people all died. But none of them should be surprised.
PS: As for the evil corporation – it’s an Alien flick; there’s gonna be an evil corporation – even evil corporations understand that providing remote-controlled-from-orbit drones is cheaper than, I don’t know, losing an entire spaceship to Giger-style alien monstrosities. Sheesh, after Aliens you’d think that every team checking out these things would be made up entirely of androids.