I didn't notice it had a different writer but that makes sense now.

Not sure I totally agree that nothing happened, unlike "Rosa", we didn't know the story behind the watch or what was going to unfurl. So it did have some stakes but yeah, the Tardis crew mostly just witness an event.

Also, who is to say Grandma doesn't remember them, Yaz is her favourite grandchild and she gave her the watch after all.

Agreed on Graham.