I've said it before but Rowling coming out by saying Dumbledore was gay after the fact is passable cause one, his sexuality had no pull on the plot and two, back in the early 2000s we didn't have the rampant virtue signaling like we do today. Now in this day in and age black Hermione is blatant pandering.
Fun fact: back in the early 2000's Rowling's website was littered with interactive Easter eggs, one of them including a sketch of scrapped version of sorcerer's stone where Dean Thomas and Neville were included in the scene where the kids find Fluffy. Dean is explicitly drawn as black and Hermione white. The site has since been renovated into a more traditional Easter egg-less site.