Do you think they would? They don't seem to be really helpful. And they've already left all those weapons, which is what they probably think is "helping"...

[ if katara was able to say fuck she would do so right now. alas. ]

If you tried killing one of them during the trial, there's also the possibility that you might die too. Remember what happened with Neku?

[ he exploded or. something. i was totally there. ]