Yeah, if they don't even know how to get out, it would be better to proceed. They are in danger nonetheless. It's basically a choice between risking their lives for nothing or risking their lives for a victory. Not a difficult choice.
Quite a predicament tbh. Before the exam, they should have informed about "what to do in case of emergency" since pretty much this is a life-threatening trial
Like it's better to stay in same place, keep proceeding, or something...