If I remember right there was one early comic where a colonist got killed but afaik it got removed and zerogravitas once said he will not go this route further at least at the moment. Your saying about realistic when sometimes gore etc. , you said yourself they are not spiders as we know them, but alien creatures, so as said they could also be plant eaters /shrug. As the aliens dissolve clothes with their fluids but not the meat they seem not so intended in eating flesh though ;-).But surely you've noticed they're not spiders, they're alien creatures. They just rape, inseminate, lay eggs... I guess vore would be somewhat ok with me, but only if it's soft vore, like swallowed whole or something like that, but I don't want to see a bunch of tiny spiders ripping apart a lady...
I think we had some minor guro already, after all these girls are fighting monsters and sometimes they could get hurt or even killed instead of "just" getting raped, it would feel a bit more realistic that way... as long as guro is not too much and not the focus of the comic, I'm fine with it.
I´m ok when Dev would make a guro comic when it is tagged before as guro so I can skip it, as the dev is not so fast in progressing it would be a time waste for me, but I understand some ppl might like to see some guro content stuff.