I really did not like Prometheus. The characters kept doing stupid things in order to create conflict and tension. The android antagonist seemed to act belligerently with no real reason to do so, and with the audience having no real idea what he was even trying to do. The tie-in to Alien also felt completely unnecessary and [more importantly] unwelcome. Apparently, the writers of Alien: Covenant saw those complaints and decided to double-down on all of them.
Covenant completely lost me as soon as the crew steps off the lander without any sort of environmental suits or helmets.
I could overlook the fact that the crew decides to land on the planet immediately instead of waiting for the storms to pass. Maybe they thought this was a rescue mission and time would be of the essence. Whatever.
I could excuse them for somehow completely missing the ruins of an alien city being within walking distance of the source of the transmission.
I could maybe even excuse the rapid pacing with which the alien gestates after being implanted by the facehugger, and how fast the alien grows. In the original movie, the facehugger was on the guy's face for like a whole day, then the chestburster doesn't pop out till the next day, and then it takes about another whole day for the xenomorph to grow to maturity. In Covenant, the whole process takes a matter of minutes or hours.
I could overlook all that stuff in a cleverer movie. But setting foot on an unknown alien world without even bothering to protect yourself from potential contaminants, and then setting the entire movie's conflict on infectious agents, is just unforgivable. Even Prometheus at least got that right ... until the crew decided to all take off their helmets because scans indicated that the "air is breathable".
Why aren't you wearing environmental suits?!
You know what else is unforgivably stupid? Following a duplicitous android into his bio-weapon research lab and then sticking your face in an alien egg sac because he kindly asked you to. As soon as the captain found out that David had killed and/or experimented on Shaw, why didn't he just shot and killed him?
The movie is also a structural and pacing nightmare. The first 20 minutes of movie feels like pointless filler; while the last 30 minutes is a lazy, rushed rehash of the first Alien movie without any of the tension, suspense, or mystery. I could buy into the first thirty minutes being a "world-building" exercise, but not when you then go on to fail so miserably at world-building by not having your protagonists follow the most rudimentary of sci-fi safety procedures.
Aside from establishing the terraforming module, that first act really does absolutely nothing to set up anything later in the movie...
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