In FlashPoint of Nova Covert Ops, you do not have to destroy all the Nydus Worms to trigger the “The nydus worm spawning points have been destroyed, Nova.” dialogue.
Possible answers:
- This is if you select the Nydus Worms to spawn on the very top left. One Nydus Worm may spawn out of the trigger check range for alive Nydus Worms.
- One tech building always spawns out of trigger check range for alive tech buildings in top left