The reason I deleted it is not because the comment was critical, but because of how you originally went about saying it. There is a difference between criticism and throwing insults.
Your point of view is allowed, just say it constructively. If I wanted to stop you from speaking entirely, devs have the option to ban an account from commenting and that's what I'd have done if it wasn't allowed.
That being said, if that's how you really feel about her and the story, then you've completely misunderstood the story, her character motivations and fears, as well as her relationship to the MC and their interactions.