I think the scarab is part of the religious incluences.
But imo they don't work that well. In the Spaiht's draft they consume the sacrificial Engineer but leave the others (elders?) alone.
So the goo seems to work better in this case because it acts more local.
Religious significance of the scarab beetle
In ancient Egyptian religion, the sun god Ra is seen to roll across the sky each day, transforming bodies and souls.
Beetles of the Scarabaeidae family (dung beetle) roll dung into a ball as food and as a brood chamber in which to lay eggs; this way, the larvae hatch and are immediately surrounded by food. For these reasons the scarab was seen as a symbol of this heavenly cycle and of the idea of rebirth or regeneration.