"I bet if some of the Chaldea staff were here they could explain it."

Ritsuka herself doesn't know enough of those fine, technical details.

"Though a lot of what Chaldea uses is... I guess 'magitech' is a good way to put it?" Is he familiar with that term? She has no idea if he is. "It's as much technology as magecraft, and even some of the staff are things like engineers instead of just mages."

Brilliant engineers, mind you. But the point is, different tech, different rules, or ways around the rules, might well apply.