Oh, thanks! I thought she might have explained somewhere, checked har Facebook, didn't think about the website.
Here in Poland people use only one name, but some use their second name as the first (because they don't like the first). And some don't even have a second name. Every country has its way, I guess.
Mary Robinette sounds pretty. Though Mary indeed fitted the rhythm of WE intro better, I wish they change the whole intro in next episodes to make it sound good again. Sort the introductions by name length (from Mary Robinette to Dan) or something.