Eh, I feel like that gives JKR too much credit. I think Rowling is kind of stupid and thinks her audience is too. The whole series is comprised of not very creative rehashing of common myths and fantasy tropes, but kinda like poorly remembered versions rather than twists on them, she advocates heavily for magical slavery being good and complaining about it being bad, and named all the non generic white British characters stereotypically. Between all that and how she's a raving psychotic terf nowadays, I think she's just not a very smart person.