A coral that spews the deadly pathogen that was used as a weapon of mass destruction, but also used to seed other planets by our gods, by melting them into bio DNA, and it is used to create life by the engineers? but it doesn't kill everything, just some creatures, others it transforms, others it grows inside then bursts out in a variety of forms, some of which seem to want to eat and kill everything and others who just stand around, and others that turn into eggs. Some turn into dog shaped creatures after gestating inside a dog (or ox) some turn into dog shaped creatures on all fours that gestate out of a humanoid. And it hatches out of one of it's creators as small blue pointy headed creature, but now hatches out as what exactly? Where are all the thousands of creatures that came from our engineer friends on this new planet. And god knows where all the eggs are supposed to have come from. I could go on.. it makes zero sense.
It's just silly. I really liked the idea of it but expected it to be rationalised somehow.
Woah, wait a minute...
That's a lot of stuff there... I'll try to put my thoughts in order...
- A coral that spews the deadly pathogen that was used as a weapon of mass destruction, but also used to seed other planets by our gods, by melting them into bio DNA, and it is used to create life by the engineers?
Well, the engineers are clearly quite good at that bio-engineering stuff, so why is it unreasonable that even though they look similar, the two types of black goo we see being used are very different?
One deconstructs the engineers' DNA and uses it to kick-start life on barren planets in order to evolve to a semblance of the engineers themselves. Like us, for example.
The other is a tweaked version that is used as a bioweapon to grow deadly lifeforms within the targeted hosts using their own DNA, which kill the host, grow and then move on as singularly violent creatures that go about killing everything else.
- but it doesn't kill everything, just some creatures, others it transforms, others it grows inside then bursts out in a variety of forms, some of which seem to want to eat and kill everything and others who just stand around, and others that turn into eggs.
Uhm... wait, I think that every creature that comes from the bioweapon black goo bursts out as a bloodthirsty creature that wants to kill/eat anything in sight. The standing around bit was only in the presence of David, which could be for the simple reason that he is not biological. As for turning into eggs, if what you mean is the Alien DC, that's not canon. So, no creatures that turn into eggs.
- Some turn into dog shaped creatures after gestating inside a dog (or ox) some turn into dog shaped creatures on all fours that gestate out of a humanoid.
Well, the Dragon (AKA dog alien from A3) was already a "descendant" of David's mutated bioweapons. Not the engineers' original bioweapon creatures, so it makes no sense to try to compare both. And, if the neo-xenomorphs of Covenant were already some mutated stock from David's experiments, they didn't come from a face hugger like the Dragon, but from direct infection by the black goo/spores, so, very different.
- And it hatches out of one of it's creators as small blue pointy headed creature, but now hatches out as what exactly?
The biology of the engineers is different form the biology of humans, so why should the creature that comes out of an engineer look like the creature that comes out of a human? And that not even taking into account whether that was the exact same pathogen or something already tweaked by David.
- Where are all the thousands of creatures that came from our engineer friends on this new planet.
The focus of the infestation was the city where David arrived, so we can surmise that it spread from there. The creatures and spores simply spread out across the planet, away from the starting point, to destroy all biological, non-botanical life. As they fulfilled their mission, why should they go back to the starting point where there were no living organisms? Provided they even had any lifespan after completing their mission... As a weapon, they fulfilled their primary mission, and the spores are what's left in case anything living starts moving around again. So why should these bioweapons stay alive indefinitely roaming around when the spores are enough to ensure no non-botanical life can thrive? In Aliens (and maybe also Alien to a certain extent) it is suggested that once all living beings are destroyed, the creatures go dormant.
- And god knows where all the eggs are supposed to have come from.
Do you mean the eggs in David's cellar? Those are clearly a product of his experiments, what he mutated the engineers' bioweapon into. If you mean the ones in the original Alien, who knows... with 2000 colonists at David's disposal, anything is possible.
