Yeah, Frank's description doesn't leave her with the impression that he's covered it all. It's no more reliable a lead than her little glass bottle of fluid is in protecting them from the Overseers' influence and she prefers to work one hopeless case at a time. Kira could be telling the truth, he could be messing with them for shits and giggles, or he could be an observer planted here by higher ranking manipulators. The hard evidence below the lake won't provide nearly such expansive room for doubt.

She's had her sip and finished it by the start of Kamala's tirade or her laugh would have splattered black coffee on the wall and couch. Kamala being angry isn't funny; her typically cheerful voice narrating Jess's thoughts? Is absurd. "I thought I was being misanthropic." Or "her usual asshole self" but she's censoring herself in current company.