I am not a virologist but the idea that a virus would somehow evolve in a way the infects us (humans) in a way that is very beneficial to its spreading despite being from outside the solar system and the fact that it survived not only the trip through space, an impact with the sun, and then reentry (probably easier than the sun stuff tbf) is just as scientifically unsound which makes the "pretty likely tbh" seem really smug
Having played the game to the end I dont think it "takes itself seriously" so much "gives an explanation beyond shut up it happened now fap", even the explanation we have now is just from one character and there is plenty of room to go in multiple directions with it.
Edit: Do people think the safe girl is a rape victim? Because she was in a safe....? do you all put victims in a safe afterwords? couldnt it be that they were keen to rape because they could rape the girl they had to put in a safe?