All this additional work the Inquisition is doing -- or will do -- seems like a waste to Lena. She's here to find Corypheus and rip him apart into tiny pieces. Anything else is boring and stupid. They're at war, and she wants them to get to the root of the problem as quickly as possible. Sure, she knows the Venatori are leading them there, but those little fucks disappeared from here already, and as far as she knows, the darkspawn magister doesn't have a darkspawn army following him. Who cares if they spill out of a tunnel in the ass end of nowhere after the Inquisition is gone?

"Or they could figure out where these Vint assholes went so I can cut their arms off," she suggests, coming down from her battle high and feeling pissed again.