Not to spoil the magic but the plan B dialog was somewhat rehearsed too. Award for the best recovery lines goes to James Dempsey and the "I Love (NS)View" song. "I, uh, forgot to mention up front that this song is a beta version. It's feature complete, mind you, but I won't have the words memorized until October..."

Probably but even the fact that they're rehearsing time-filling stories is a more human trait than the pre-recorded months in advance videos that are usually shown today.