I have no real issue with Cake having poor reads, or having reads that don't align with mine, because I don't know how accurate mine are currently and I don't think it's impossible that she reads the game in a way that doesn't match up with me.
I di think, positionally, her play around Ultra looks poor. But I have to question why she would double down if she's scum with Ultra, because she'd surely expect to lose a lot of credibility. She struggles with TMI, that means town reading townies that are scum read, nothing like this to be honest. I wouldn't clear her forever off of this, hence why I said this is a big day for her, but I don't see any reason to actively have her as scum over her reads.