Poe being grumpy at her doesn't even make her bat an eyelash. She's seen Saw's temper at it's peak, a man raising his voice even a little bit to her doesn't make her flinch anymore. It's not worse than wearing down at Cassian's temper enough to make him snap at her.

She'll give him his reprieve, for now, but only after she answers his question that she is sure was rhetorical. "If what we feel here doesn't matter, what's the point?"