I agree with Chewbacca. I didn't know who she was when I first tuned into the interview. Her comments about racism towards Meghan just sort of hung in the air with no further explanation or challenge by the interviewer.
As for comments on Kate's figure and dress sense, well! Ms Mantel chooses to wear that she likes and Kate does the same. I didn't like what she was wearing, but she has a right to dress as she pleases and so does Kate. We're all jointed humans of one shape or another. I found her very offensive.
I've got another 'keen'... Ouch!