You've looked at a lot more of this series than I have, but from my limited perspective the storyline with Evil Mary is working right now, as a way for the writers to have her vent her frustrations, which they've been building up in preceding episodes this season. I do think you hit on some things with Montoya. I like the actress, but her role on the show is strange. She is letting other people do her job, and she is way too obsessed with Poison Ivy. She's really in it just for Ivy, so that doesn't really make her a heroic character. It appears that the Batwoman writers are going for complicated characters this season. Definitely see what you're saying about Luke, which is unfortunate. You're right about Wilder not having relationships with Dr. Stewart or some of the other characters. Though I would've been fine if there was something that happened off screen to establish connections there with Stewart, STAR Labs, ARGUS, etc. I could imagine Luke more easily having those connections with STAR Labs, and we know he has one with ARGUS through Diggle.