Piccolo nodded in acceptance. If he thought any less of Tidus or was concerned in any way about what the teen had confessed, he didn't show it. Although if anything that may have just been his way of showing he trusted in the other. Not talking about things was just how to say 'you've got it handled, I trust you' these days, right?

"After that little stunt, we never know when another attack will happen. They can always use more defenders."

And Tidus was probably one of the better fighters. Or maybe Piccolo was just being biased towards one of his students.