Jack is following K'Pandolu and Minfilia's lead on this, if they know what's going on here. "Do you want to stay? Or should we find another way out of here? Just because this place looks like it's leading us here doesn't mean we have to follow."

Normally, when faced with the dilemma of safety versus finding out more information, Jack will charge in the direction of more information. But he's not only responsible for himself here.