If Phillip were openly Numbered and willing to use his powers, Toushirou wouldn't be telling him to go. Phillip is fully capable of protecting people with his abilities, after all. But Toushirou at least respects his choice not to reveal himself.

He nods at the question. "We've gotta at least keep this contained so we don't wind up with a total disaster."

And he isn't one that is going to back down from something like that. He kind of feels like its his responsibility.