There's a bit of nervousness at the idea of wandering in the vents (she's clumsy and loud sometimes, who's to say she won't accidentally alert the mutineers to their presence somehow?) but a bit more nervous about doing nothing. She understands the point behind the mutiny, but she doesn't agree with how it's come about; now is not the time, especially in a vulnerable position like they are now. Something like this will cause conflict in a time when she's not certain they can take it. She sounds contemplative as she speaks.

"How do we know they won't hear us, either?"