Am I Dumb? (s2e4 spoilers)

Ok guys, I am new to the sub. but I rushed here after s2e4, which blew my mind away. This is easily the biggest plot twist I've seen maybe right after "We have to go back Kate" episode of Lost.

Another hint that makes me think I'm dumb (or simply adhd, not giving enough attention to the screen), in various tv shows and movies I've watched with my ex, she always laid out a very good guess pretty early on, only to be right at the end. I was mindblown each time. My ex is not a Mensa IQ champion, but she does amazing in these kind of things. So much that I hated watching things with her.

|| || |>!You know, there is another part of me that keeps my mind away from "theories" because honestly if I was on this sub before and saw "Helly or Helena" discussions, I wouldn't have the absolute joy I've had today. Ok so finally it comes to my question. Do you think there is enough evidence to suspect Helena was infiltrating the severed floor? Did you come up with this yourself or did you get intrigued by ongoing theories on the reddit? Honestly the only thing that threw me off was her moment running from the elevator, as last time she was with us she was being tackled. But it didn't make me think even for a split second about infiltration, my mind just went to "These big studios always mess up continuation to give a better scene, they don't care"<

What do you think about how should someone consume tv shows? My way or 100% informed of the super sharp people of the internet? Do you think there are also people who have access to the production are spreading stuff around? (It's a long shot)

Either pour your heart out or downvote me, but be honest, did you see this coming yourself?