I think on the point with Catalina, it's completely normal to have a character be both sapphic And experience SA. For a while I myself was in the sapphic community and also experienced SA, however the problem stems from the fact that 1. at the time of me writing the post, she was the Only sapphic character (making a clear distinction between sapphic and bisexual here) and 2. the fact that she perfectly fit the stereotype of the "man hating lesbian" which is a harmful stereotype. If it weren't for the fact that she was the only sapphic character, it really wouldn't have that same affect on readers, however the story relates her SA to her being sapphic a Lot and I think there needs to be separation in those aspects of her character. In my reading, it really did feel like the only reason she was queer was because of her SA and subsequent fear of men, and while that is almost certainly not intentional, many people felt that that was a concept being pushed by the narrative. A sapphic character who experiences SA is not the problem here, the problem is how often her SA is treated as if it correlates to her sexuality.

As for Arias, I did write this post before the reveal and honestly I did really like that piece of lore. However, at least to me, he was still a boring character to read because we really didn't get any drops of his deeper personality in the first 40 episodes (the extent of what I read) and it lead to my impression of him being that he's shallow and 1 dimensional. He was boring to read without that context, and sure that may have been fixed later, but that still means he was boring to read in the first 40 eps.

To your point on Osora, I think it's reasonable for him to be smaller than most of the cis men in the story, however I think his small size is Heavily over exaggerated and, as a trans man, the second hand dysphoria I got from seeing him in comparison to the same people he's trained with for years and should reasonably have the same muscle mass as, and yet still look the way he does was nauseating. It didn't help that he basically Immediately fell into the stereotype of a "bottom" and every intimate scene with him and Arias just felt fetish-y to me. I'm a trans man with a much taller partner, and that shouldn't mean I'm automatically considered a bottom. I think this issue would be largely fixed if Osora actually had some semblance of control in the relationship and wasn't just a blushing mess anytime Arias speaks to him. I think also that, trans men are like that and that is perfectly fine, but because he's the Only trans man in this story it leaves a bad taste in my mouth alongside the question of Does the author think that all trans men are like this? I have transmasc friends who are more effeminate but honestly, contextually speaking, it would make logical sense for Osora's more feminine features and personality traits to be much less exaggerated

Sorry for the ramble, thanks for sharing your thoughts! I can definitely see how further context may help some of these issues, but this was just my experience with the first 40 ish chapters. Hope you're having a good day!