In most cases the Aliens we know from the films like to take their victim away with them, sometimes alive sometimes not.
It bothers me a little bit that the AI Alien seems to just run around killing and then leave the corpses, from a game perspective I think it may have been much more impactful to see the Alien drag people away alive, kill the androids or even ignore them.
Imagine what a great scene it would be to finally wander into the place where it has taken everyone, and how horrifying that would be, in my mind better than finding a bunch of corpses all over the place.