Maybe because she's a smug cunt all the time, and the fact that she's supposed to be this know-it-all shrink and looks like she's 25ish.
I think Russo could have done better, with a better script. Religo-man was dull, seen the same character type done many times and done better, again, not the actors fault, imo. Bland Girl needs to stick to being "Girl #3" in forgettable slasher flicks. Her writing was bad too, but she was always one note, that note being "just got home from the mall with my BFF!" Bernthal had to carry every scene she was in, but luckily he's killing it as Frank.
The season really suffered from not having a truly scary big bad. All the characters were struggling more internally than with each other. This is what happens when you have too many female writers on staff. They should have had the Amy/Pilgrim stuff wrapped up by mid-season, and then had Russo wake up, and be way scarier, and uglier. Dude looks like he cut himself shaving. Overall I enjoyed it, thanks to Bernthal, hope he gets more roles like this. That being said, I feel like the first episode was the best, the rest were just ok.
Last thing, I know Medani is small, but she's supposed to be a DHS agent. You're telling me she couldn't take out equally tiny shrink girl in like two seconds, without spilling her wine? lol