Jk Rowling doesn't have the benefit of the doubt for that to work. Her works are dripping with status quo reinforcing shit and neither herself nor her characters are capable of growing past what they were born as.

It's not bigoted to recognize the type of language and stereotypes that are used against marginalized people. If you're a woman, you've almost certainly been called "too emotional" or "on her period" before as a means to dismiss you by people like this who think that emotions and rationality are incompatible with each other.