Totally agreed! Every episode this year has been so strong - smart, fast-paced, varied and completely bonkers. I’m loving it.
What anomoly? They stated it outright at the time she was introduced - she’s his granddaughter. (And if you follow the novels, the relationship was directly addressed again in Lungbarrow in a slightly more complicated way - but even so, she’s his granddaughter.) I don’t think they’re desperate to dredge up 45 year old continuity issues.
Although if they did mention Susan, I would just about pee my pants with excitement.