No one ever said making mistakes was inherently bad. It's only bad when your plot requires that everyone make obvious mistakes that real people would never make purely to serve the needs of the plot. I don't think this is a particularly opaque concept, so I'm at a bit of a loss as to why you're playing ignorant here.
Gendo'sPapa wrote:Company didn't know the Aliens took over the colony. They ASSUMED because of Ripley's story. At that point WY has not yet had any physical evidence of the Xenomorph. They sent Burke with the Marines to verify. Either way, whether the Marines take Ripley's story as fact - they don't - those guys going in without a helmet is still just as valid a logistical criticism as it is in Prometheus/Alien: Covenant.
No, it really isn't. LV 426 was a terraformed world and they had no reason to think a disease was in play, so there was no reason for them to do that. You're comparing apples and oranges.
Either way, I'm having a bit of a laugh seeing people on the Evageeks forum attack Alien: Covenant for having characters acting foolishly advance the plot & then we turn right around & vigorously defend Evangelion 3.0 for pretty much committing some of the exact same flaws.
People are attacking Prometheus, not Covenant. And they defend Q because it does the heavy lifting to justify pretty much every foolish decision made throughout. Prometheus doesn't.