So I’m not sure if it would work with the mother grub thing, but this makes me wonder a bit if troll reproduction wasn’t designed to make the population more controllable. Nobody has family ties aside from their romantic relationships, nobody is particularly attached to the younger generation, inheritance (to kids anyway) isn’t a thing, so property is easier to control, etc.
I’m probably wrong but I’m also putting it out there. Because you never know with this thing. But she’s probably just trying to make humans more like trolls.