Aside from infesting at least several Terrans, Niadra in this story managed to infest Syntax Structures someday. Of course, as she found the infested mutants more useful than infesting humans and eventual cyborgs, therefore she would eventually bring herself and her Brood as the ultimate in the mutant slaughter.

Niadra as the larva already was the master of infestation. Besides, she's the first Zerg individual who successfully infested... the collossal Protoss spaceship. Therefore, no surprise should be about how extremely functional Nemesis Infestation Pit actually is, comparing with those from other Broods.

(Zerg Infestation Pit belongs to Blizzard.)