I don't know what we're up against. You've managed to keep us here this long we don't have any of our powers--as far as we can tell--and you've already told me you don't make promises you don't intend to deliver on if one of us gets away with murder.

[ ...not in so many words nor in that phrasing but, well, you know. ]

Even if we found you, I don't know if we'd be able to beat you, or... whatever. Our odds aren't exactly looking good right now.

It's easier to assume the worst until it looks like there's a chance to get something better than that.