You can't just pitch an idea like that and not expect Raichi to take it at least somewhat seriously...! But that is a sane and rational rebuttal against his completely unreasonable alternative, which Raichi takes just as seriously as the initial challenge.

"I guess...!" Not like he's ever actually attempted such a feat himself, but, hey, maybe Sanada's got a point. "There's probably a better place for something like that anyway."

His temple grounds have other dangers to watch out for, after all. (Dinosaurs.)

"H-how about..." Something simpler, a more achievable consequence... "Loser has to make the winner a meal?"

Ah, of course. Why wouldn't it come back to food? Is this just some kind of ploy to try some of Sanada's cooking again? Probably. Definitely.