Yes, wouldn't it be more interesting if teacher woman were combative and socialist and clever and nice, and making Tom rethink his sort-of allegiance to the Crawleys? Rather than permanently sneery and looking for a ruck?
Actually, I thought that asking to look around the house was pretty rude, anyway. Even if her intention was to embarrass Tom into admitting he's not really one of them, asking a casual acquaintance to poke around someone's house when the family aren't home is pretty outrageous, whether it's a semi-detached in Surbiton or a stately home.
It was nice to see Ivy look anything other than hangdog, and Mrs Hughes and Carson paddling...
Paul Giamatti, Shirley MacLaine and Maggie Smith do deserve better lines. Surely the two dowagers wouldn't be quite so nakedly rude? And what about some sophisticated, subtle old-money Americans who don't start slapping the Prince of Wales on the back etc etc.
Also, am I imagining that Edith had slightly nicer clothes than usual?