Checking out the mental health of the staff is also his job. So this isn't out of question. He doesn't bat an eyelash when at the snapping. He deserves it and expects it.

"On addition of changing your fundamental nature, which is stressing enough on its own because you feel like a newborn," he says, nodding slowly to let him know he's aware of his stakes, "You also got something you might have wanted." That's his guess. He seems so self-loathing about his skill as magus even he has picked that up. "But you don't know how long it will last."

He sets down the cup of coffee and looks at him without finishing his guess. That maybe he's reluctant to embrace something he'll lose and will remain a memory where he fought side by side with Humanity legends to save the world.