It was difficult for Nick to accept what had just happened.
He was just about to undergo his ability advancement, and now, he had been abducted by the Maw.
There were several things that were hard to accept.
First, Nick had been safe inside Aegis' headquarters for years by now, and now, he suddenly got taken away.
Second, this had happened right after the Technician had warned him. In a weird way, it would have been easier to come to terms with it if the Technician had simply said it.
Third, this was an Eternal!
Eternals were always very special, and interacting with any of them was something that happened extremely rarely.
People rarely interacted with the Nightmare since they avoided it constantly.
If people interacted with Nurse Alice, it was almost always only once in their lives.
Nobody interacted with the Null.