Jimmy is a mess right now, so I doubt he's registering half of whats going on around him. I wouldn't be surprised though if they eventually let him in on the secret. It'd make sense and it's not like he's being protected from danger by not knowing. I've always thought Perry, Lois, and Jimmy should all be brought in on it sooner rather than later.
She does kinda right? Glad it's not just me. I'll have to go back to see if that realization reframes any of her actions in the prior issues, I think off the top of my head Lois and Jimmy's interactions in 1008 also seem very Durancey, as was her funeral comment to Jimmy here. The fast talking, kinda quippy, and a little impulsive (which I guess fits a lot of interpretations of Lois) really struck me as a Smallville like take on her here. Knocking Waller out definitely is what drove it home for me though!